Doctor Who in the house: David Tennant at Comic-Con and the rumors are flying

Is David Tennant coming to Comic-con International to say goodbye ... or to announce the start of something big? The time traveler is on the clock when it comes to his signature role — the announced plan is that he will leave the character behind after a series of specials that will air on the BBC next year — but there has been speculation across the Atlantic that he is coming to San Diego to announce a Doctor Who feature film. Could it be true? It seems unlikely to me, but (ahem) time will tell. The Doctor Who panel at Comic-Con promises to be one of the must-see moments this year, and we're pleased to report that the Sunday morning session (July 26, 10 a.m., Ballroom 20) will be moderating by Los Angeles Times television critic Robert Lloyd, whose dry wit is a perfect fit for the occasion. "Doctor Who" creative force Russell T. Davies, director Euros Lyn and executive producer Julie Gardner will all be on stage also. Do you have a question for the good Doctor or his compatriots?