If a TV has
YouView (Sony) or
Freeview Play (Vestel, Panasonic) then it will have all the PSB catch-up services on it. These services are relatively recent so it has been a bit of a lottery until their introduction, particularly when people got used to apps which then were removed or no were longer supported. The fact that Vestel are now starting to ship TVs with Freeview Play on them should put pressure on all other manufacturers to do the same or opt for YouView.