Michael Dann, head...

...of programming at CBS in the 1960s, died at age 94.

To give you an idea of how dominant his network was, Dann's obit notes (my emphasis):

In the 1963-64 season, CBS had 14 of the top 15 shows, with [NBC's] “Bonanza” spoiling the clean sweep. In 1966-67, CBS had eight of the top 10 shows (“Bonanza” and ABC’s “Bewitched” filled out the list) and the following season, all of the top five series were on CBS.

Television was a little different back then.