For several years, Luis and Maria operated the Fix-It Shop, where they repaired an assortment of items, including an innumerable quantity of toasters. Luis founded the shop with Rafael in the third season. In 2002, Maria and Luis converted the store into a Mail It Shop, but reverted it back to the Fix-It Shop in 2006. In 2014, he began maintaining the Bike Shop.
In attendance at Luis' wedding was his Tío (uncle) José.
While Luis was dropped from the show after season 45, he has occasionally appeared in media outside of the show including a 2017 Chrysler commercial, a video in the Read Along Series in 2018, and in Sesame Street's 50th Anniversary Celebration.
- Sesame Street
- A Walking Tour of Sesame Street
- Sesame Street in Puerto Rico
- Follow That Bird
- Learning About Letters
- Big Bird's Favorite Party Games
- Sesame Street, Special
- Sesame Street: 20 and Still Counting
- Big Bird's Birthday or Let Me Eat Cake
- Sing Yourself Silly!
- Sesame Street Home Video Visits the Hospital
- Sesame Street Stays Up Late
- Sesame Street All-Star 25th Birthday: Stars and Street Forever!
- Elmo Saves Christmas
- The Adventures of Elmo in Grouchland
- A is for Asthma
- The Rosie O'Donnell Show on Sesame Street
- Language to Literacy
- The Street We Live On
- What's the Name of That Song?
- Todos juntos contra el hambre
- For Me, For You, For Later
- Sesame Street's 50th Anniversary Celebration
- The Sesame Street Block Party Coloring Book (1977)
- Sesame Street Goes West (1977)
- The Sesame Street Mystery Coloring Book (1977)
- Fix It, Please (1980)
- Frazzle's Fantastic Day (1980)
- The Count Counts a Party (1981)
- I'll Miss You, Mr. Hooper (1984)
- Big Bird's Bedtime Story (1987)
- Ernie's Neighborhood (1987)
- Bert's New Collection (1988)
- Cookie Soup and Other Good-Night Stories (1990)
- What's in Oscar's Trash Can? and Other Good-Night Stories (1991)
- Grover's 10 Terrific Ways to Help Our Wonderful World (1992)
- Elmo Saves Christmas (1997)
- Elmo's Delicious Christmas (2005)
- Other illustrated appearances