You may have to not UPGRADE to 10 but just do a clean install. There is no free upgrade to W10 so you may as well do the full install.

My advice is to replace the HDD with anything so you can go back if you can't figure it out.

I can write I expect the TV to not work after this.
http://content.etilize.com/Manufacturer-Brochure/1014384097.pdf