Great response. Thank you.
I think the "after 8pm" part is the secret sauce of not feeling guilty about how you're allocating your time. You've found a chunk of time that you really shouldn't be working on your startup anymore...and it's a time slot where most people are wasting time watching TV, drinking, etc. Keeping productive at that time is awesome.
I like this so much, I might give 8pm blogging a try.