Since I retired and moved out of CT, I have had to rely on streaming, first from CPTV and now from SNY, to my laptop or desktop computer to watch games, and I've noted how many BYers have had trouble with that kind of setup. (BTW, no SNY on TWC up here in Maine.) How well the streamed services work depends on 1) speed/bandwidth of streaming services signal; CPTV's signal got better over time, but SNY's was strong throughout last season. 2) the speed/bandwidth of your internet provider's signal; I upped my speed with TWC Cable service, and that has locked in a strong, steady signal.
3) paying attention to SNY's recommendations about settings and browser extensions.
Last season, I streamed the SNY service to my MacBook Air and hooked that up to a 60" flatscreen Sony. It was sweet! The picture was steady-- a few rare freezes--and quite clear, even with a screen that size. I used a single HDMI cable from laptop to Sony for both picture and sound, the best way to go if your computer has either an HDMI output or a "dongle" to convert your display output to an HDMI signal. I'll try the same setup for the exhibition games' streaming via All-Access
I do wish SNY offered full streaming of press conferences, Geno shows, etc, but I'll take the games they stream, especially given the high-quality of the image and sound. Good luck with your setups.