Strikezone is on free preview 4/11-4/23 this month and is available on the Multi-sports package after that. It should be airing right now on Tuesdays and Thursday on channel 153.
I was under that impression as well, I asked another team member and they said they thought it should be on already, but I think we are right in thinking it won't start until 4/11.
that makes sense. It's not being fed in the place on C-band that it was last season (the distribution feed to cable/dbs headends) and there really is no need for it this week with the EI free preview on non-DISH providers.