Watching tv.

The breaker was for the living room lights and receptecles (floor above me) and the outside lights and recepticles. No, the Christmas lights weren't on. But when I had plugged in my new, lighted door wreath, I thought I smelled odd burning smell--so I unplugged it. Breaker went off about a half hour later. Connection there??
Box is Bryant/Westinghouse.
Thanks