Both Curb Your Enthusiasm and Entourage went into syndication this fall on terrestrial broadcast stations for their first season. They were sold to Tribune Co stations as a major launch for the group in late night. But they have performed poorly in the ratings. So HBO recently came to its corporate cousin, Warner Bros Domestic Television Distribution, wanting to pull the shows from syndication. Yesterday, Warner Bros contacted stations to give them the news. However, the series will continue their syndicated runs on cable: Curb Your Enthusiasm on TV Guide Channel, and Entourage on Spike. What HBO plans for the two shows next is unclear.