ArticFox, The economy plus $19 plan is only a 3 Mbps service. Although it's cheap, it's nowhere near enough bandwidth to stream video.
For an extra $10 per month ($29.95) you can get thr 25Mbps performance Internet plan. That's the minimum I would suggest for video streaming.
Like it or not, Comcast is the only game in town for fast reliable Internet video streaming.
Click below...
https://www.google.com/get/videoqualityreport/
Then click "compare providers in your area".