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I gather that in some way, this show was supposed to have been based on the movie "Taxi Driver." However, the show and movie have absolutely nothing in common other than taxis. Anyway, I was too young to see the show when it first aired, but I did later see some reruns on cable or something. I haven't seen as much as I'd like, and it's been awhile now, so I'm not sure how well I remember it. I am sure, though, that it was a better show than my rating suggests. If I ever get to see more of it, I may raise my rating.
It was definitely a funny, kooky show, with a great ensemble. There were a bunch of characters who drove taxis for a living, but wanted to go on to bigger and better things. My favorite character was Jim Ignatowski (Christopher Lloyd), who was the craziest of them; his mind wasn't all there, nor indeed very there at all. Seemed to have lost a lot of it because of drugs or something. Let's see, there was also Alex Reiger (Judd Hirsch), sort of the central figure of the show, sort of the wisest of the characters or something. And Louie DePalma (Danny DeVito), their boss, who was really a mean-spirited guy, but funny. Another of the best characters was Latka Gravas (Andy Kaufman), an out-there foreigner with a weird accent and a split personality. And Elaine Nardo (Marilu Henner). And Bobby Wheeler (Jeff Conaway), an aspiring actor. And Tony Banta (Tony Danza), an aspiring boxer. And there was a woman named Simka (Carol Kane), who was from Latka's home country, and eventually married him. And, I'm afraid I can't think what else to say.