My mother and father preferred NBC, somewhat due to they loved the old Bob Hope Specials, but mostly due to the news. They liked Huntley/Brinkley in the 60's, but also preferred KING-TV, the local NBC in Seattle. Both tended to be on the liberal side of the spectrum, and this was at a time when KING was unabashedly with a liberal bent. However, they also really enjoyed Ed Sullivan over on KIRO, must-viewing for the whole family.