I think we have exhausted this subject
Last night while watching a Netflix movie it stopped at 7:15 on the dot and started to re-buffer. After about 7-8 minutes I gave up and exited Netflix. Interestingly it downloaded fast at 6 PM, that red bar really moved! Comcast is keeping in touch but after asking specifically "do you throttle" they have not admitted anything. Yet. The timing each night at 7:10 or 7:15 the movie stops to re-buffer indicates to me that this is a controlled event rather than all my neighbors near and far are clicking on Netflix at the exact same instant each night.
Bob is correct in that this is a lost cause. I do appreciate the suggestions and opinions.