That’s cool bro. But if you don’t remember then you know what you have to do…
Watch it now in Blu Ray quality or wait until Feb 2023 and watch it at the cinema in 4k.
I recommend you wait for the cinema experience since this movie is better watched on a big screen for the first time. Since Blade Runner 2049 came out 5 years ago, there has been no cinema worthy movie ever since, so Titanic would be a good opportunity to actually see something on the big screen again.