There used to be government restrictions in the US regarding how many minutes per hour broadcasters could show commercials, since TV stations were using "the pu

There used to be government restrictions in the US regarding how many minutes per hour broadcasters could show commercials, since TV stations were using "the public airwaves", and in most places you only had three or four channels. But with the advent of 150+ channel cable services they decided the rationale for that kind of regulation had been undermined.