Yeah, I check them often too, particularly around Olympic time. Last winter olympics, I found a FTA hidden channel on 82 with good Olympic coverage. Unfortunately I didn't find one this time around, but luckily there were some other FTA channels, and that plus for once one of the NBC group of channels gave me the 2 things I was looking for. Although I did need to watch some things while listening to French audio, but that was actually kind of neat, hearing what "oh my gosh, what a crash" sounds like in French. Some things sound the same no matter what language.
But yes, the Nimiq sats are still working. There are still a couple QPSK transponders on 82, and most of the 91 transponders are still working.
Re the switch going bad, don't throw it away... I've found that those things will stop working for whatever reason, moisture, temperature, or whatever, then if you bring them inside to dry out, they come back to life at some later date.
EDIT: This reminds me of a question I have had for quite a while, but forgot to ask.
When Nimiq4 took over at 82, all the talk was the N4 was supposed to have very poor coverage over the US, being kind of spot beamed to Canada. For me, however, this sat has been stronger than the old Nimiq2 or whatever it was, however since I'm pretty close to the Canadian border, perhaps I'm within the footprint.
Anyway, I'm curious with respect to what kind of reception people are getting for the 82 sat further south. I had read one post from some people like in Kentucky, who were getting it, but poorly (I think), but I'm still curious whether this sat falls off to the south rapidly.