November 29, 2014 10:00 pm High School Blitz: Thanksgiving and Playoff Highlights Comcast SportsNet’s John Clark goes over all of the Thanksgiving football game highlights from high schools around the area, plus the playoff matchups. US & World Videos 1:47 New nationwide Xfinity ad features 3 Vietnam War vets as Military Appreciation Month begins 1:08 Philly police believe teenage girl stabbed grandmother to death inside rowhome 2:10 ‘You're speechless and can't believe what you saw.' Mom sees video of attack on her autistic son on SEPTA train 0:39 1 dead, 3 injured in Eastwick after two separate shootings, police say 0:22 Rescue crews call off search for missing kayaker in Schuylkill River