I replaced the circuit breaker today, but it wasn't the problem, as the problem still existed once we plugged everything back in where it was. We recently added the Christmas lights and air pump for a fish tank to the circuit in question. We seem to occasionally exceed the draw. Stuff flickers a little, the TV and VCR shut themselves off. The DVD player goes to la-la land until we unplug it. That circuit also has the outside plugs/lights and garage. Nothing in the garage is plugged in and nothing is plugged in outside. Maybe a bug climbed into the outlet or something.
I plan is to suffer through the outage until after Christmas and see if it goes away with the xmas lights.