I'm in the same boat, but it's not losing interest. Losing interest would be if you used to watch a lot more than you used to. You are just watching a smaller percentage of events because there are so many events now. So if you watch the same amount of pay-per-views you used to (for the most part) and you have trouble catching up on Fox/FX, that isn't losing interest; it's just watching a smaller percentage than you used to.
I missed the FX show and will probably miss the upcoming Fox show, but I will see the Super Bowl PPV. Whereas two years ago, the Super Bowl PPV would be the only event of the month. So therefore I'm watching a smaller percentage, but still the same amount overall.