Why is changing channels slower these days with better technology?

when you got tv over the air, you could switch channels in less than a second. but with my xfinity, the current channel freezes for 5 whole seconds. Also, what makes tv so expensive to [roduce that it has to be nothing but commercials? What the hell am I paying the cable company for? Wasn't cable originally a... show more when you got tv over the air, you could switch channels in less than a second. but with my xfinity, the current channel freezes for 5 whole seconds.

Also, what makes tv so expensive to [roduce that it has to be nothing but commercials? What the hell am I paying the cable company for? Wasn't cable originally a way to get around ads in the first place? How is it legal that I only have like 3 places to choose from for the whole nation?
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