With Comcast, I told them I wasn't switching to their TV. I told them up front that there is nothing they can do to make me switch to the X1 with all the fees. But I couldn't help but notice that they have packages with the broadcast TV package and HBO and Internet for the same price. They have HBO and HBO2 in HD. None of the others and many are missing. I told them that Directv has every single HBO channel in HD except HBO Family west. If they want me to bundle, I don't want the value to go down. I begged and begged and begged for an hour via chat and finally I got them to switch out HBO for their Sports Pack. Nothing in those 2 sparse packages is in HD that I don't have already in HD on Directv except HSN and a local cable news channel NECN so I just have a basic cable receiver. I used to pay them $87 for slow 25/5 and broadcast. Now I pay them $109 (for 2 years) for 50/5, broadcast, and the sports pack. I also have Military History, Pac 12, NECN SD, and a few of the Canadian channels that can be a little rough OTA sometimes. Cable doesn't carry all the OTA subchannels here, but I have an AM21 for that. There are 16 total channels on Comcast now that I don't have on Directv.
To the OP's point, I HATE HATE HATE how much slower Comcast is from like 4pm to 10pm. I can usually get 42/43 later at night and if I am home during the day. But during those hours it drops into the low 30s and even upper 20s. I never had this problem with my Internet in NC (AT&T). I watched the entire season of The Man in the High Castle 4K streaming and it only paused to buffer twice, both during episode 1 and both around 9pm on that day.
The list of what i gained, but all in SD. None of these channels are available in HD on the Comcast system, except NECN, so HD receiver not necessary.
ch 15 Public Access
ch 16 Public Access
ch 17 Public Access
ch 19 CBMT 6-1 CBC Montreal
ch 21 CTV 12-1 CFCF Montreal
ch 22 SRC 2-1 CBFT Montreal
ch 92 Public Access
ch 142 ion WPXG 21-2 Concord NH (qubo/life are available but in higher packages)
ch 181 NECN
ch 171 FCS Atlantic
ch 172 FCS Central
ch 173 FCS Pacific (although we have the live games on Directv)
ch 295 Daystar WYDN 48-1 Worcester MA
ch 341 V-Me Kids
ch 493 Military History
ch 497 Pac 12
I don't want to hear anyone whine about the current Directv interface. The cable interface hasn't changed since literally the 1990s. And with Comcast's higher quality SD, and the proper settings on the TV, scaled to 4K, it is actually not bad. I love Directv for the most part and Comcast here has very limited HD. It only costs me $20 more to have Directv than bundling with Comcast. And I feel I get $20 value doing it this way.