I've been with WOW for like 15 years now. I never have any problems with the service, but they do try to jack up my price all the time and I have to call and complain to get it back down.
I guess that's how you show your appreciation for long-term loyal customers - soak 'em!
On topic, I have a couple of Roku's as well, but I HATE watching news and sports, so that's not an issue for me. Although there are several news channels available on Roku, as well as the Ustream live "newscaster" aggregator channel with lots of different local live streams from NBC, ABC, CBS and Fox affiliates all over the country.
As far as TV shows go, the only good option there is Hulu+ for getting things in a timely fashion. Netflix and all that usually don't make episodes available until they are out on DVD.
Amazon Prime Instant has a decent TV selection too, and it's a little more timely than Netflix. They have HBO content, too, which is rare.