Trakt why do i need it

I am new. So help me out. I have been using Series Guide. But why do I need Trakt. I keep reading about on forum?
I also have issue with 20/20 and 48 hrs not updating to this years 2022 episodes on Series Guide
Can anyone help me on these questions

Hello! Trakt is a website that keeps a record of what you have watched. It can connect to a bunch of other apps and media centers. See

As for the shows you mention, they appear to be news programs. I’m not sure how frequently these are updated (see Help | SeriesGuide).