I think I would have gone to the neighbors if it weren't the last batch of rolls. I was actually 240 into my 300 goal. I also have cranberry sauce to make. Luckily, there isn't a damned other thing for the dinner that depends on the oven.
I talked with John and we agreed that it's likely the glow plug starter for the oven, as the switches seem to be working well enough to light the other elements in the oven and the oven indicator is going on, so there's a connection. He's at Home Depot, so he'll look for a starter element. Otherwise we may have to call a repairman tomorrow, sometime, if it doesn't interfere with my other cooking.