Use their streaming service you should find there is a either a free period (you have to sign up and then cancel) or just sign up for a month. I Canada it is $24.99 per month. If you are still in the USA for the Semi final that will be on DAZN, again that requires subscription but again normally has teh first month free.
All the premiership games are on the streaming service even if not on TV in the UK. You have to be in region to watch however but if you are not VPNs are very useful!