Please a Freeview channel, please a Freeview channel!
I use http://channelsurfing.net/
for free live-streaming.
Go to the website and, as instructed, scroll down for the list of today's events, which will appear under "View Unlimited TV Stations - Begin" (ignore that, that's something quite different), then just click on the appropriate channel. With the AO there'll probably be a choice of channels, so it's a case of clicking on each one to see which is showing Murray's matches.
You might be asked to download the current version of vShare plug-in. If you are, it's perfectly safe to do so, and of course it doesn't cost.