The variety of products is enormous, and is deliberately made complicated by the vendors - is SHP65CM5N different from SHP78CM5N? Do reviews of one apply to another? When a new model code pops up every year - does it invalidate the old reviews? If you watch "Oppenheimer", and your pal watches it - you can be sure you watched the same movie, and can compare the notes, and tell your other pal who didn't watch it yet whether you liked it or not, and it'd be useful. But with every store having their own model code set and those rotating all the time and having a thousand options, your experience may not be comparable to somebody else's. There are review sites and recommendation sites, like Consumer Reports, which kinda approach it, but there's no way to make it as systematic as for movies or video games, because there's too much variety.
