[mythtv] SVN[8675] live TV stops at program end

[Dag Nygren]

> Actually, I think I may have found this bug last night. It appears
> to be triggered by a stream format change with a timing element.
> Yesterday I managed to reproduce it dependably with a release build,
> but after many tries I only got the problem once with a debug build.
> But I think I found the problem that time, I'll put more detail in
> the commit log when I have a fix ready...

Yes Please!

I also still see occasional total freezes at program change,
more seldom now that with earlier SVN:s, but still.
Do you think your fix could help here too?

Dag