Taxi - Season 5 - Eps 14: Alex's Old Buddy
Alex takes ownership of his old dog, Buddy, who has been living at his sister's place in the country. Buddy is now 19 and Alex wants to spend as much time with him as possible. The dog is lovable but at his advanced age, requires constant care, and Alex soon is taking Buddy with him everywhere including the cab. The gang soon sees that Buddy is not doing very well and gently suggest that Alex consider putting him to sleep, but Alex refuses. Jim suggests that Alex get Buddy to do his old trick (playing dead) to determine his wellness. Buddy does the trick successfully, although gives the gang a scare when he doesn't get up right away and they really think he may be dead (thankfully, he turns out to be okay). However, the next time the gang sees Alex, he doesn't have Buddy with him, and Alex says that he had to take Buddy to the vet where he died. Louie ushers everyone out of the garage so Alex can grieve alone. With everyone gone, the stoic Alex cries as the episode ends.
About Taxi

Title: Taxi
First Air Date: 1978-09-12
Last Air Date: 1983-06-15
Status: Ended
Rating: 7.252/10 (from 163 votes)
Language: EN
Seasons: 5
Total Episodes: 114
Network: ABC NBC
Genres: Comedy, Drama
Production Companies: Paramount Television, John-Charles-Walters Productions
Synopsis
Louie De Palma is a cantankerous, acerbic taxi dispatcher in New York City. He tries to maintain order over a collection of varied and strange characters who drive for him. As he bullies and insults them from the safety of his “cage,” they form a special bond among themselves, becoming friends and supporting each other through the inevitable trials and tribulations of life.
Cast

Judd Hirsch
Alex Reiger

Danny DeVito
Louie De Palma

Marilu Henner
Elaine O'Connor-Nardo

Tony Danza
Tony Banta

Andy Kaufman
Latka Gravas

Christopher Lloyd
Reverend Jim 'Iggy' Ignatowski

Carol Kane
Simka Gravas