The late, great Lyle Bond and Emil Karas did the honors first from 1961-68 on KFMB-AM. From 1969-71, Stu Nahan & Johnny Parker did the games on KDEO. Others in the 70s included Hope Hines and Jerry Gross. I'm not sure of exact dates and stations. Lee "Hacksaw" Hamilton announced in the 90s, including their only Super Bowl season of '94.