I listen to the EDHRECast since they started. It's a fun and informative podcast, many times about trends that can be seen on the EDHREC site. I also listen to CMDRCentral, three friends that talk about commander, Dana is also in the EDHRECast.
On youtube I watch Game Knights, I hate your deck and Tolarian Community College. I discoverd the I hate your deck I show when the Professor was one of their guests. IHYD is one of the more amusing Commander shows I know off. I don't like MTGGoldfish as much, althougt I like the articles of Tomer on their site. And I like the episodes of Extra Turns more than the Game Knights episodes of late, those are too produced with all the talking about what happened and who did what. That's also why I have stopped listening to the Command Zone podcast, too much talk about theirselves and their sponsor deals in the show is what has put me off.
I definitely going to check MTGMuddstah again, but I think I have watched them and didn't like it very much.