Ken Jennings and other game show champs will chat online with viewers after tomorrow’s installment of the all-star competition “Grand Slam” (Saturday at 7 p.m., GSN), hosted by Dennis Miller.
The 8 p.m. chat features the four semi-final round participants: No. 2 seed Ken Jennings (“Jeopardy”) vs. No. 14 seed Michelle Kitt (“The Weakest Link”), and No. 5 seed David Legler (“Twenty One”) vs. No. 9 seed Ogi Ogas (“Millionaire”).