This is an interesting bug, bad design, etc. I went to directv.com/tvlistings again. I scrolled down and it ends at channel 699. So I saw an NBA game on channel 698, I clicked the link, when it opeded near the bottom it has an option to see more channels, I clicked on it and then it showed the NFL, NHL, NBA, etc so basically from channel 700 on.
This is a terrible design that you cannot see more channels unless you drill in to an entry and because of that I thought I wasn't able to set the NBA games up to record online.