CBS.... While playing around with I got this a couple times. After I said "try again" it worked.
You've reached the maximum number of simultaneous video streams for your account.
To view this video, close the other videos you're watching and try again.
Also, it appears once I login I can close the browser and then when I open and use the URL I no longer need to login. I remember early on with some of the TVE Sources I had to login manually? Meaning when I added the source I had to change windows to login. Maybe that was a special case in the very early setup for TVE. Anyway, I wonder if you did this the same way on the initial login it would no long need to happen?