As many questions about value, this one requires multiple pickings. I'm fond of my moments watching to "Columbo" http://en.wikipedia.org/wiki/Columbo
and "Star Trek: The Next Generation" http://en.wikipedia.org/wiki/List_of_Star_Trek:_The_Next_Generation_episodes#Season_7_.281993.E2.80.9394.29
Columbo - a masterpiece-character played by Peter Falk, gives us the chance to see how a seemingly erratic mind gradually unravels deep awareness and deep wisdom. My fav quote comes from the episode: "Sex and the married detective" -- when a shallow girl asks him if she should reveal a bitter fact to a person in sorrow, he tenderly smiles and says: "Well, sometimes kindness is wiser than truth".
Now Star Trek caught me by the characters' psychological depth along the episodes, as well as a steady call for high moral standards by Enterprise crew. Actually if you go into the series steady deep, you will see ethical issues and the riddles of human existence being challenged, and resolved, all the time through a stunning pace of popping up dillemas. Two episodes are memorable: "The Inner Life" and "Only Good Things..." (the later is the series last episode). One has to be cold blooded to watch to them and hold emotion.
I also like - not properly a syndicated series - but a character revisited in several movies, magistrally built by Peter Sellers: Inspector Clouseau's "The Pink Panther". It's incredible how a native English speaker, like Sellers, cloaks so well his natural accent under an amazing French way of talking. This creates hillarious inter-linguistic plots, like this:https://www.youtube.com/watch?v=dzbgpGuX6-s
The full ~3min are funny but the lesson on intercultural mismatches on language unfolds through the first 1.12min.
Tks for reading.