Requirements for commentators.

Dirty, how can you keep things interesting? I mean, I have my own kind of hardcore mode, but it's hard to comment on God of War for ten hours straight (=

Well, how does Tvarina do it? For example, argue with someone from the audience, discuss a viewer's question, develop some unrelated topic, etc.

Somewhere? :D
I haven't found it yet.

Here are some basic differences from SOD.