If you are willing to accept a fixed level of performance, we mostly can. HDDs, being a moving part, have a slightly higher failure rate than one would like; but the rest is mostly a software problem, one that is even frequently fixable by non-techies with the restore partition (though, if you go that route, your computer won’t hang on to your files any more than your TV will).
The humble TV’s great advantage is that it has had long periods where buying a new one got you virtually nothing in terms of improvements, and that it has never been expected to save state (aside from, perhaps, some channel-scan data that can be recreated but are faster to store) so software trouble is kept to a minimum.
