Go to ebay and buy a Hudl2 running Kitkat (you can ask the seller what version it's running, or spot the KK home button in the photos).
Root it using the tethered recovery method.
Reboot and avoid updating now and forever using this method.
Use Titanium or whatever to uninstall Tesco bloatware. Don't worry about the consequences because there won't be any other updates or changes that you'll ever want.
Sell your Lollipop Hudl2 on ebay for roughly the same price as you bought the other one for.
Enjoy your Kitkat rooted Hudl for the rest of yer natural, or until Google moves on so far that nothing is supported any more . . .