fork-sticks and toast

[Kim & Rima McKinzey]

>  >We happened on the last minute of a (?)game show last night just as the
>  >emcee was saying, "Put a pat of butter on it.  This show is toast!"

This would seem to have a different connotation than I've heard
before.  To me, when something is called "toast" it means more "done
for" than simply "done" or over.  More like "I'm in big trouble
here."  Has this changed to meaning merely over and quite benign?

Rima