I don't think this was actually broadcast OTA in the UK, only streamed via Iplayer. I caught a few moments of it, but I think it was only a stream. It definitely wasn't on BBC1 or BBC 2 and I think the only other BBC OTA slot was being used for Glastonbury coverage.
Baseball isn't that well known in the UK, unlike Gridiron, basketball and Ice hockey which have reasonable sized cult followings.