Thanks for the idea, Raichu. And Jigglefree gave me an idea on another thread: On Demand videos from the cable company.
By the way, just in case anyone was concerned, I'll note that because Tuffy is having seizures, when she is home alone (besides the two other cats) she is in a padded cat carrier. The same for when we're asleep at night. Otherwise she'll try to wander off just anywhere, such as once we caught her trying to hide *inside* the sofa. She'd crawled underneath it and then climbed up under the cushions. We had to turn the sofa upside down to get her out. Animals have an instinct for disappearing when they're critically ill, to be out of the reach of predators. That instinct is really playing on her. We can't have her loose in the house unsupervised, and have her go into a seizure while hiding God only knows where.

Poor thing.