On Apr 14, I watched the Chinese Grand Prix OTA on an all Spanish network. You get used to it after awhile plus you can hear the drivers transmissions, which are in English. I'll write down the network if they broadcast the Spanish GP this Sunday.
I don't find the announcers all that entertaining or informative anyway. Sometimes I even turn off the NASCAR guys. They just say the same old stuff all the time anyway and they miss so much it's not even funny.