This seems the standard price... Looking at running an Apple TV and zwift of this... undecided whether this or a 55 inch hisense
Very happy with purchase. Dolby vision is automatic when watching Netflix.
The Argos description also says it has WebOS (LG's proprietary OS). It doesn't have HDR10+, but it does have Dolby Vision.
The hitachi does have Dolby vision which kicks in whilst using Disney plus on a 4K fire stick.
Review here https://7review.com/toshiba-58u2963db-review/