BritBox - 30 Day Free Trial
Update from Tom : BritBox, home to BBC and ITV shows, offers a 30-day trial for free. It's then £5.99 thereafter. There's no contract and you can cancel at any time.
I noticed that my Samsung TV had added the BritBox app and, on clicking it, discovered that Samsung TV owners get a 90 day free trial instead of the usual 30 days. Have given it a spin - at least there should be something to watch over Christmas...