"Hill Street Blues" - loved it! Do they ever re-run it these days? Gritty, streetwise, believable characters with all those interweaving plot-lines. Gosh, 'twas terrific.
And, almost unbelievably, by the same production company that gave us "WKRP in Cinncinatti", which was so different it was just about the opposite in every way but great fun. Not sure I could face repeats nowadays, though!