If you have a few hours to spend on humorous entertainment, you might want to check out Prequel. It's a MSPaint Adventure set in Oblivion, a bit before the game starts, following a Khajiit trying to get her life back on the right track (but horrible things happen). There are a bunch of Oblivion in-jokes, but it should still be enjoyable enough without having played the game.

It starts out only moderately funny, but has the best setup-punchline I've seen in quite some time, and so I recommend sticking it out until you get to that point (June 16th, probably ~2 hours in), but not starting it unless you're willing to make it that far.