Okay, this is cheating a bit as it's two channels, but they are part of the same company, they just showcase different things.
If you enjoy to the Dis Unplugged podcast, then you should definitely check out their YouTube channel of the same name. The Dis Unplugged channel features the recordings of all their podcasts, with added video clips that help give you more context. The videos are uploaded to YouTube on the same schedule as their podcasts are released in iTunes.
The dining reviews work much better on YouTube as you can see for yourself just how busy the restaurant is, what the seating was like and most importantly how good the food looks. To be honest, I've stopped listening to the podcasts and now only watch them on their channel.
The Dis channel is the place to go for all the latest news and also for clips from inside the parks. The Dis Daily Fix is released every day and gives a quick run down of the latest news. There's also clips from the fireworks shows and filming from in the parks.
If you also like Disneyland and Universal Orlando Resort The Dis and the Dis Unplugged channels both cover what's going on at those resorts too.