Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Do i need to buy a 4k upscaling bluray player for this?
Document: When One Connect technology is updated you can get the external box and it overrides the internal to keep everything cutting edge. He said samsung is supporting One Connect for a guaranteed four years to guard against your tv becoming obsolete. I asked him about the 1080p to 4k upscaling. He said yes it does a good job at kicking up standard HD better than Sony or LG, but if you want to see something great, get a 4K bluray player, then he drug me around to show what it could do.
I did see this TV mounted with a standard Vesa mount though and the Oneconnect box rest nicely on top of the mount or can be secured to it via zip/cable ties should need that.[... ]4K BLU-RAYDon't bother buying a 4K upscaling BD player as the TV will do that better for you. 4K blu-ray specs have not yet been finalized so it will be a while before we see true 4K movie players. Some studios are considering 4k@60Hz.
This was a big upgrade from our previous LED, now five years old. Easy setup and a crystal clear screen. New HDMI cables capable of transmitting the higher capacity were necessary of course, as well as the new BluRay player. .. now waiting for 4K content, though I don't know how it could be much better.
i just return the TV!Look I had a Samsung supervisor on the phone telling me that indeed it should be in the box!! !If you look at the advertising, it actually described the TV with the Upscaling feature and the one connect box. Nowhere on the advertising does it say that this is actually optional. SO this is either false adverstising or just flawed shipments stock.fact is the manual does talk about a separate option to buy, which apparently will be the future ones.
Will probably have 4k/60Hz passthrough and 4K upscaling.4K CABLE/SATThere have been no announcements from Sat/Cable box makers on 4K devices but Tivo said they will be offering something down the road. I can see Sat TV moving quickly but not cable. Some channels and studios are also considering 4k@60Hz content.
This tv does everything. Not much 4k content out there to review that but the upscaling and 3d look great. The shipping company that amazon used for this was a different story. They make you schedule a specific time window so someone will be there to sign for the delivery. My delivery window was just about passed when the guy called and said that he couldn't make it but maybe two hours later he could.
I have had Samsung televisions before and I have always enjoyed their picture quality. This  tv surpassed my expectations. 4K on YouTube and Netflix is fantastic. Even the sound quality is superior to previous Samsung televisions. I am looking forward to more 4k content in the future. The upscaling  using satellite input or blue ray is superb. I am very happy I purchased this set.
People that buy TV's this big and expensive are usually paying Tier 4 electricity rates, we don't need to be reminded of this each time we turn on our TV. Grrrr.Samsung built in guide has no filters for displaying HD channels only.
"The One Connect doesn't come with the TV, but you need one because the TV is just a monitor" (it has no ports they said). They said "I could buy the One Connect Box from the parts department" (false). They said "I would not be able to watch any 4K without the Box" (false, it has the codec and HDMI 2.0). I pushed back and explained a few facts I was reading from their own website's specs.
For the first time in history Samsung is offering a very large LCD at a reasonable price. However should consumers immediately buy? Or wait for further market corrections and variety?There have been many obstacles. Some reviewers have a myopic vision stating there is little difference between 1080 and 4K. The root cause is their screens are too small. (They need to ask themselves why 65&#8221; 4K displays are already heavily discounted and 75+ displays are $1.01 off).
Answer: You shouldn't need to because the Samsung UN55U8550 has a built in upscaler. I watch broadcast television on it at 1080i and it upscales beautifully. I also have my computer connected to it at 1080p for my Steam games and media and they also upscale very well. Wait until blue-ray players support HDMI 2.0 (this TV does) then upgrade your player.