TUESDAY, JULY 13
"ONE TREE HILL" - (8:00-9:00 p.m. ET)
"Family Affair" (TV-PG, DL) (HDTV)
GUESS WHO'S COMING TO DINNER - Nathan (James Lafferty) tries to keep Haley (Bethany Joy Galeotti) calm after Taylor (guest star Lindsey McKeon) shows up at their house with Quinn's (Shantel VanSanten) ex-husband (guest star Scott Holroyd) in tow. Julian (Austin Nichols) sticks up for Alex (guest star Jana Kramer) on the set of their movie, and Brooke (Sophia Bush) leans on Alexander (guest star Mitch Ryan) to ease her heartache. Meanwhile, Clay (Robert Buckley) gets a chance to prove his commitment to Quinn by helping her through a dinner with her sister and David. Lee Norris, Jackson Brundage and Lisa Goldstein also star. Paul Johansson directed the episode written by Mike Herro and David Strauss (#714).