Nothing better illustrates how the cable TV business has changed than DOCSIS 4.0 spectrum plans, as tested by Comcast. Where it once was the case that almost all forward bandwidth was devoted to analog TV signals (50 MHz up to 1 GHz),
source: Cisco, Broadband Library
DOCSIS 4.0, as tested by Comcast, devotes most bandwidth to internet access, with just 120 MHz devoted to TV delivery, in the 684 MHz to 948 MHz region. And where traditionally frequency division was the multiplexing method, DOCSIS 4.0 will use time division as well.
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