I was watching Columbo on Channel 5 at the weekend and it struck me that it's the only none-comedy show I can watch repeatedly and never get bored with it, especially the episodes starring either Robert Culp or Patrick MgGoohan. Pure genius.
While I'm on the subject of top cop shows, the brilliant NYPD Blue ends this week on More 4. Although not a comedy, Dennis Franz has always had some great one liners as Sipowitz. And it's got more depth in five minutes than all the CSI franchises combined.