Go for whats the latest in the market. This year C3, next year C4. These things get old very fast. Moreover you dont buy a New TV for 2-3 years. Better to spend a bit more and get the newer version. Either C2 or wait for C3. I dont think you should consider an older model.
Please wait for C3. It will be worth it.
Do not go for C1.
Go for C2 only if you want to buy it immediately (not sure why there is a emergency for a TV! ) )
Maybe, go for C2 in Diwali 2023. It will be on its lowest.
Goodluck.
The following video might help, personally I would recommend C2 and if you can wait, buy it right around the time C3 is released to find any discounts.