Huey Lewis sang it in "Back to the Future". Let's go back in time. The 1970's we're a decade of great innovation. Cable TV, portable phones, the start of the computer age...yet the top TV shows of 1977 were based in the 1950's. ABC finally was a real network, with a number 1 show two years in a row, and "relevant" TV was fading. All in all it was great time to be a TV watcher. Here's the top 5 TV shows of 1977.