KOIT 96.5 flipped to all Christmas music yesterday, an annual tradition for that station. Last year, holiday music gave KOIT enough of a bump that it tied KGO for first place in the November-through-mid-December ratings period for total listeners. KOIT had never tied KGO before. KBAY 94.5 also plans to flip to all Christmas music, but won’t make the switch until Thanksgiving eve at 5 p.m.