Life on Mars should be a very bad show, based on the elevator pitch:
A cop in present-day New York gets hit by a passing car, and wakes up in 1973, still a cop in New York. There’s some odd crossover from present day (people he knows in 2008 are younger in 1973), and the occasional anachronism (a kid shows up at some point with a Nirvana tour shirt on).
but it’s not. I dunno much about it (like who wrote it, or whether or not there was a UK version first), but it’s like a grittier version of Quantum Leap. I mean that in the best possible way.
Whoa, did you know this about Quantum Leap?
Quantum Leap is an American science fiction television series which ran for 96 episodes from March 1989 to May 1993 on the NBC network. The series was created by Donald P. Bellisario, based on a concept originally created for Galactica 1980. This concept was then reworked outside of the Battlestar Galactica framework.   – The Might Mighty Wikipedia
Well now you do (and doing is half the… wait… that’s wrong). Now that piece of information is lodged into the same part of your brain that holds infinite amounts of 70s lyrics, you’ll never get that part of your brain working right ever again. You’re welcome.