99. But it's 2-77 then it skips to 98 then 99. It also depends if you have the box which comes 1000 + channels. Some come more that gets channels all over the world, it lets you watch T.V from Japan, Asia, ECT ECT.
Most at night are infomercials. Except Nickolodeon that shows Nick at Nite that shows old 90's shows. And Cartoon Network that shows cartoons and MTV and VH1 that play music all night. I think those are the ones that play shows at night, will late night.