OK, here's how it goes...
I am presenting this from a perspective of a feed-hunter.
There are several options:
1. is to choose a CPU that's supporting HW decoding of H.265 HEVC. Downside of this choice would be if you're gonna watch 4K UHD feeds 4:2:2 simply because the same CPU has to handle conversion of enourmous amount of chroma-subsampling data from 4:2:2 into 4:2:0. It is tough for HD 4:2:2, and a helluva worse for 4K UHD 4:2:2.
2. that is exactly why I would recommend to use a dedicated GPU (gfx card) that will provide HW decoding of H.265 HEVC and a stronger CPU to handle conversion 4:2:2 into 4:2:0. Such a combo works perfectly, even handling 8K HEVC in HDR broadcasted on TurkSat.
3. option is to buy new TV that is capable of showing 4:2:2, but then you'd still need STB or PC+DVB-S2 tuner coz some feeds are encrypted, and TVs (mostly) cannot do decryption. List of some such TVs is here:
link.
Pay attention that table of tested TVs can be enlarged by clicking underneath on the button "SHOW MORE (15/124)".
Make sure that TV in this table is marked with "Yes" to support 4:4:4, otherwise you won't see 4:2:2 on it.
I cannot tell you how deep your pocket is and what are your goals.
For particular models of CPUs, graphic cards and TVs do some research as there are many available on the market, with various features and prices.
But, one thing is for sure: watching sat-feeds (especially in 4K) is never meant for end users at home, so be ready for real investment in gear if you wanna compete with broadcasting TV companies who are the original consumers of sat-feeds in the sky.