I agree with you about "an unsolved murder mystery to solve". The shows are fine if they're about solving the crime, as Law and Order or Murder She Wrote (though one has to wonder if Jessica Fletcher was secretly a mass murderer with all the murders she encountered <^..^>) or Colombo were. Leverage is a recent Cable TV series that could've done a few more years, it's so good. And the first two years of WKRP!!! The turkey episode, the battling mascots etc...ohmygosh!
LOL! Our age is showing. TV faves and no longer wearing High Heels ala Melania! :)