I wouldn't worry about 120 fps for now. However, if you truly want it get a 4k 144hz gaming monitor that has HDMI 2.1. Or a high end TV with hdmi 2.1. Usually a monitor will be better overall than a TV in most cases due to color gamut and latency Usually you want 5ms or less. I think you will start seeing more options in 2021 given the year we've all have had. Also don't expect 4k 120hz on ps5 to compete with a PC with latest video cards on the market. Most serious pc gamers run 1080p or 1440p with refresh rates well above 144hz. Nevertheless, it's nice to see this generation of console try to get closer to pc tech. I would think of the ps5 as a pc running a 2080 super. I will tell you my ps5 has been running cold war at a solid 4k 60 fps and has been really smooth. I have an Acer Predator XB273K Gpbmiipprzx monitor which is capable of 4k 144hz over 2 display ports on pc. It will not run over 60hz over hdmi 2.0 in my case. Hopefully next year I can upgrade to a second monitor with hdmi 2.1. Even when I do I do not expect a solid 4k 120hz experience my guess is a solid 90 fps with occasional spikes much like pc video cards. I hope with a ps5 update sometime next year they give us the ability to choose solid frame rate vs variable frame rate. I would rather lock my ps5 at 100hz (for example) than 100hz - 120hz fluctuations. Variable fps gives you the user the experience of choppy, laggy and glitchy game play. When video cards have a smoothness functionality (amd 6800xt anyone) they are talking about locking fps at a point that gives you best experience, which falls short of maximum fps but above 60 fps. Gaming at 90hz is better than jumping all around fps numbers. Hopefully, I made sense in long winded response.