Hello, Elle!
I am afraid I can not help with your recording problem, Elle!
I know, though, I have had a similar problem online several times and it turned out the noise was coming from another open tab.
Closing the tab fixed it.
I would doubt if the original programme had a problem, or I would have expected a visible "apology" on screen?
Is the recording on Freeview, if that's what you have?
I'd suggest the old favourite.
Unplug the machine at the wall for a couple of minutes, switch on, and do a test recording?
Is your daughter safe home?