I want to ask my wife to workout on her own time but be honest about how long she will workout. I don't want to find out she is an asshole for lying about when or if she is doing it.
You're the only telling her to do it herself. Why would that be considered an asshole move?
I'm enjoying the final season of a series and it's incredibly annoying having to wait for her.
Your TV show is important to you, but your wife's work out is more important. Make it known how you will only wait a certain time, and have her take some pics and videos of her while she is working out. You will have proof she is there, rather than guessing.
Maybe, Frank is important. I can't just bail on watching him.
Is a TV show really more important than your wife's health? I think the both of you should be a little more honest and trusting of each other to be comfortable being away for a while. You can just record the show, and talk out your problems with her while she works out.