Episodic. Many, many episodes in "seasons" I guess (I will probably do it wrong because I don't understand how seasons work, they're just story arcs, anyway there's quite a few of them too).
I have read some of Wheel of Time, I'm pretty sure I heard that he hadn't finished it before he died but someone else finished it for him. I think I did at least somewhat enjoy it as I read 2-3 of the books but not enough to read all of them. He definitely just kept visiting some alternate universe rather than making all that up though ;D
true =)