How will an original PS4 (launch day) look on a 4K HDR screen?

My old Samsung D6000 finally bit the dust and I’m looking at getting a new TV. I’m looking at a 55” 4K HDR set. Should I expect it to look a little off because the TV is capable of better picture or should I be fine? Not sure if I should start saving for a Pro or just keep what I’ve got.