TNT is also airing Angel twice a day. The 8 am slot is just starting the fifth season (Monday will be "Lineage") and the 5 pm slot has just started the fourth season (Monday will be "Slouching Toward Bethlehem").
I have to mention though, that TNT has a... weird way of showing the show. They seem to cut to commercials at the end of scenes that aren't meant to be the end of the segment and they show two segments end-to-end.
Um, it's kind of hard to explain but you know when it's obvious that the scene is meant to be the end of the segment (something like a character saying "No!" and then cut-to-black) and then the scene picks up again. It must be a weird timing/commercial thing on TNT...