Just so you know, while it is good to note when a TV series has ended, "is a television show" can still be used in many cases (see Scrubs or Community). The changes you've made are fine (it does look odd when it's a show that only ran a season or two), but this is just to let you know you don't have to change it to "was" every single time, especially for non-talk shows (as long as an end date or the fact that it's off the air is mentioned, either one works).
To make it extra clear, this is how all titles of shows, movies, books, or magazines should be handled: with italics (done on the wiki through a double single quotation mark, ''Title'', like so. Titles of episodes, songs, or sketch segments ("Monsterpiece Theater") are in quotes.
Please read the formatting section of the style guide (and really, become familiar with the whole guide, as Scott suggested below). Thanks!
C.J., you were blocked on March 20 for one day to have some time to review Category:Policies and Guidelines. I'm blocking you again for three days because it appears you still need time to review the rules. Please use this time to do so. It's not the job of every other wiki editor to clean up after you've made a sweep through the wiki. If you continue to fail meeting the standards of our Guidelines, you'll be blocked indefinitely.
Hi, CJ. It's not a matter of apologies, but you were blocked for the same reason Scott mentioned before. To read the pages in Category:Policies and Guidelines, and because other editors are devoting more clean-up to your contributions than to any other user.
Most of the issues Scott and others already mentioned in the messages on your wall, if you'll re-read them (including the fact we've had to revert a lot of your changes). But I'll try to break down some of the major ones.
Sources. When you add something, you need to specify where it comes from, and the formatting and way to do that is explained on that page. Here's one example. Your forum threads have been especially confusing because you're not linking to the Muppet Wiki articles you're talking about, or else linking to the outside article you're referring to.
Categories. You're having trouble there, part of it from not quite distinguishing what counts as a reference or a mention or what (some of that can be complex, so you might need to take a break from those until you get what counts and doesn't). But the other issue is adding categories without clicking them to see what the definition is, or reading text on list pages explaining what belongs and what doesn't. That's important, as is reading edit summaries for why something has been changed. That falls under communication.
It seems like you also haven't read Muppet Wiki:FAQ (which covers basics on sourcing, reverted edits, and so on). Basically, please read the articles in Category:Policies and Guidelines thoroughly. Nearly all of them apply to your edits, or will as you continue (such as guides to image uploading), or just explain how Muppet Wiki works (Muppet Wiki:Admins and Muppet Wiki:Assume good faith). Basically, we've been helping you a lot (my breaking it down like this even), but now you need to do some homework yourself so you can understand the guidelines and how certain things are done on Muppet Wiki.
C.J., a simple “okay, thank you” does not bode confidence in me that what we’re telling you is sticking. You’ve been editing with good intentions and you’ve added useful information, but you need to assure us that you’re following our guidelines, or at least intend on doing so, in order to continue contributing here.
Our ratio of good to not useful new contributors is not great, but your arrival helped tip the numbers in a favorable way. You just need to be a little more conscientious.
Special:Contributions/Cjahero shows all your edits; take a look back at your changes using the diff links on that page and I think you'll see why we've been concerned. Then, take those lessons — paired with a thorough familiarization of the pages at Category:Policies and Guidelines that we've asked you to spend some time on (hence the temporary breaks) — and go forth and do good things.
CJ, you've been blocked twice now to give you time to thoroughly read Muppet Wiki's policies and guidelines. THESE ARE THE RULES THAT EVERY CONTRIBUTOR MUST FOLLOW. We've been very patient with you; normally this behavior from a new contributor doesn't get nearly as many chances as you have, but because we recognize that your edits are being made in good faith, we've been trying to train you up. But there's only so much hand holding we can do. None of us makes this our full time job. We have other things to do both on and off the wiki and this can't continue.
This addition violates two items on our Muppet Wiki:Image Policy which you've been asked multiple times to read. READ IT NOW. Slowly and carefully. When you've finished reading it, read it again. When you're done and you fully understand it, respond here to acknowledge you understand it. If you don't, I'm going to block you for a month. This is your last warning.
Hi, just a note, most of the time on the year pages, we don't include every person who died that year. We leave it for main Muppet contributors (generally over a significant span) and major Sesame cast or similar folk (i.e. Gerry Parkes). Celebrities, guest stars, one-season cast members, and Sesame Street actors who recurred but weren't credited or major characters are generally not included there (at some point though, a separate list for tracking Sesame cast and guest obits may be worthwhile). If you'd like to change or discuss it, or you're still unclear how it works, feel free to start a forum thread. Thanks for understanding!
Hi, I undid your addition to Minor Video Game Mentions mainly because it's not really clear how it's a reference. If the quoted line refers to something in the game, you'll need to be specific. The tweet talks about deep cut references but doesn't actually say Muppet Monster Adventure. I sort of got the impression maybe the reference was supposed to be the game play but I don't know. If you re-add it, please make it clear exactly what from Muppet Monster Adventure is being referenced.
Hi, a reminder about adding anything to Minor TV Mentions or anything else: we can't really use "in a segment" or even "in a 2015 segment" entries. For shows that don't have episode titles (reality shows, sketch comedy, etc.), we need an air date. If you can't find the date but can link to video on a forum thread (as happened here), sometimes we can find the info (and sometimes we can't). Please keep all this in mind when adding mentions. Thanks!
Hi CJ, thanks for starting the Studio 10 article, but just so you know, we don't need to do a bunch of Wikipedia linking on our articles. I was going to de-link all the host names, but we really don't need to mention them either unless they're important to what we want to say about a Muppet's appearance on the show. Morning show hosts typically change and it's not the kind of thing we're going to keep track of, so it's best to let Wikipedia handle it. Which is why I added a link to the Wikipedia article for the show at the bottom of the page.
Also, elsewhere in your edits, I see you're doing better with grammar, but you're struggling with how to stylize certain things. Short version: things like songs and episode titles go in quotes, while things like TV show and movie titles go in italics. You can find more about this in our Muppet Wiki:Style Guide.
Thanks, and please let me know if you have any questions.