Mister Rogers' Neighborhood
This was a childhood favorite of mine, especially growing up in Pittsburgh, PA. I have recently been rediscovering this wonderful SEL series, which was way ahead of its time. Mister Rogers breaks each topic, such as 'jealousy' or 'anger,' into about 4-5 different episodes, slowly exploring a storyline in the Land of Make Believe. It is an incredible series to watch and discuss as a family, and I guarantee you will hear your kids at some point murmur, "I feel like that sometimes." I love his way of phrasing things, such as "what do you do with the mad that you feel?" He is a calm, warm presence, something I find lacking on TV these days.
You can watch old episodes on Amazon Prime and iTunes...I believe you can also watch some for free on PBS Kids.