because I really want to watch rugby later and don't have Sky?

[whatkindofdaughter]

Where can I see it other than going to a pub?

None of the main channels are showing it.

Someone said it's possible to watch it online - Youtube.

Yes?

It would be more useful for you to google the specific match you want to see.

Get Now TV on a device and get a day pass.

I'm assuming the sign-up process is automated and therefore instantaneous.

Ask your friends (Facebook appeal) and see if you can join any of them if they are watching it!

I don't think AIBU is the place to ask for illegal streaming sites, OP...

Go to the pub

I think the Now TV day pass. Which I think is for 24 hours, so check if there is anything tomorrow morning/early afternoon you would like to watch, to decide whether to start the 24 hours now or just before the game starts.