Of COURSE I do. I'm Canadian. The 4th was my last day of work before maternity leave. From the 12th until the 28th. I was sitting on my butt, 8.5 months pregnant, watching hockey and figure skating (among other events) on TV as any good Canadian was, since the Olympics were in Vancouver!
On the 28th, it was the gold medal game. 16.6 million Canadians were watching, and 27.6 good Americans were too.
But you are entirely correct. Unless there is a significant event, it is very VERY difficult to remember anything from the past without a certain amount of hints. I'm not surprised that people don't remember much about what happened before the McStay's went missing, but their memory recall seems much better after they KNEW they were missing as it was a triggering event.