Hey, good clean-up work lately, but a technical issue: Never place a possessive (apostrophe and s) inside italics if it's not actually part of the title (because that's what the italics imply, so basically you're unintentionally changing the show title, not fixing punctuation).
That's really a wiki code issue (because three single quotation marks read funny in code). See my edit summary and actual edits on Sesamstrasse as a good example of how to fix that. If it can't be reworded, use the code <nowiki>'s</nowiki> after the title. Thanks!