In some markets, you can get a package from Comcast called "Internet Plus" or "Internet Blast" or "Internet Pro." For us, it's 100MBps internet, local channels, HBO and a couple of cable channels -- AMC and I think COM -- for $69.95 a month, about $75 a month with tax.
Given that fast internet by itself costs about the same, I am happy with this deal. For us Comcast internet has been pretty reliable and most of the time downstream speed is great.
The hardest thing is negotiating with Comcast. If you already have a $150 or $160 cable package, the rep is not going to want to sell you a $69 package -- they are paid bonuses to upgrade people, and downgrading people looks bad on their record. So they will be very resistant to telling you about packages that cost less than your current package.
I'd suggest just eliminating all TV and taking internet. Or, if possible cutting all Comcast service entirely and try to find another solution for Internet for a month or two -- perhaps you can do it through your Verizon or AT&T phone plan.
THEN when you call Comcast, the rep will be much more likely to want to tell you about low-cost plans like Internet Plus.
I really hate PS Vue interface -- incredibly clunky, but it does work. And to subscribe for just football season to get BTN is expensive - $150 for three months. But it's cheaper than being stuck with a cable package that's $150 a month.
Anyway these are interesting times for sports fans. The landscape is rapidly changing and the option are different every six months, so stay nimble.
I cut Comcast about 6 months ago and haven't looked back. I kept their internet and now use Sling TV, Netflix and Amazon Prime. I pay Sling TV $45/month for the Orange/Blue package for almost every channel that Comcast gave me, including local ABC and NBC. I use a digital antenna for CBS. Sling gives me ESPN, ESPN2 and ACC Network. I have lived without Big Ten TV...I watch at a friend's house or a pub when I just can't get PSU.