I had a very similar story related to this as well.

For the longest time I always assumed RF remotes were the ancient ones, as growing up, we had an old large Magnavox console tv, with just such a remote. As time progressed we went to IR, which was, as I'll explain below, a welcome relief!

The tv was positioned in a basement room, just under my bedroom. Every few months I would be rustled from my sleep, at 4AM, to come downstairs to the tv turned on, blaring full volume and on channel 99 (static). This continued for a while until I realized that my father, who is HAM operator, and an early riser, would somehow be injecting into the remote sensor on certain frequencies occasionally. Needless to say it was thusly unplugged afterwards!