Two TV series: Garrison's Gorillas and Sherlock.
Garrison's Gorillas
I don't post a lot about Garrison's Gorillas but it's been a favourite of mine for 30 years now. It was made and shown in 1967/8, and lasted for 1 season. It was shown again in the UK in 1989 (which is when I first saw it).
It's set during World War II and is about an Intelligence unit comprised of an American Lt. and 4 convicts who are working for the US Army in order to earn a parole. The scripts are a bit hit and miss, with very improbable scenarios but there's quite a bit of humour included.
For me, the real attraction in Garrison's Gorillas is the characters and the friendships between the characters that develop over the episodes. They go from being suspicious of each other and their leader to close friends who'll risk their lives for each other.
Sherlock
Do I need to explain Sherlock? I think most people are aware of the series.
I really really enjoy the series, the first episode especially. I love the little details Steven Moffat and Mark Gatiss included from the books (like the neighbour being Mrs. Turner), as well as the fun way they modernised everything.
I love all the main characters and the interactions between the characters. I love that they all acknowledge Sherlock is incredibly socially inept (he's a git) but they love him anyway.