Complex sentence: By 1979 George had his own talk show at KCOP, and when it moved to fledgling UHF station KDOC in Anaheim, he launched "Hot Seat" in 1983.
Split into simpler sentences: By 1979 George had his own talk show at KCOP. This show later moved to KDOC in Anaheim where he launched "Hot Seat" in 1983.