Sadly because of the business I'm in the majority of people with MS I have known personally are bedridden and totally dependent, sigh. Personally I think if people see just how bad it can get they might be more clued in with how difficult we have it sometimes.
The other thing I think about is how discouraging for the people that are totally debilitated if everyone with MS was depicted on TV as healthy and able bodied. Plus I guess the story wouldn't be as dramatic if they told it from the perspective of someone like me would have snatched his kiwis off if he tried getting into my bloomers uninvited.