Samsung forum: Scrambled Channel or Weak Signal - Samsung LCD

I'm having an issue with my new Samsung 32" LCD TV (Model No. LN32B360C5DXZA) that I'd love to have fixed.

Currently I've got my TV directly plugged into the wall without a cable box. This setup is for a few reasons, most important to me is that it allows me access to local channels like NBC in HD. Not having any third-party cable box, only having to use one remote, and free HD channels has been great. The downside though is my channel numbers after the TV scans for them are ridiculous: 38-105 is TNT, for example. I found a workaround by favoriting my most watched channels through the TV feature and also making a paper channel list.

However a few weeks ago a few of my favorited channels simply disappeared, and when I tried to return to that channel I got a "Scrambled Channel or Weak Signal" error message accompanied by a black screen. Initially this happened almost exclusively on my favorited channels, but more recently I've been losing more channels. Auto Programing the TV will delete these channels, as the TV recognizes them as Scrambled.

This confuses me, as I'm still able to receive many other cable channels.

I've tried changing out cable cords with no luck. The signal strength of my reception reads 9/10 bars, so signal strength can't be an issue.

I want to keep HD channels, but I also need to access the channels I'm losing/have lost (ESPN is one example).

Can someone please diagnose what my problem could be? Thanks.