@WelshDave
I can see Downton Abbey A New Era 2022 as Buy for £13.99 HD. On my BT TV Player., so it may have reduced in price.
note that HD and SD versions are considered separate items so make sure you order the right one.
If if is a Buy item it can be watched as many times as you want for an indefinite period so long as you have a BT Tv subscription. ( If you cease your BT TV subscription there is the ability to watch (in SD format I believe) via BT Tv app on some devices. BT TV terms and conditions has section(s) on Buy to Keep content ).
Some items are offered as Buy from and/or Rent From .
If it is a Rented item you have 48 hours from when you Rent it to watch it as you wish on your box.
