Guide data off by 3 hours (EST vs PST) on just one channel

What did it show next to that channel number before and what does it show now?

See Bottom of screenshot ... but if there is a way to fix 1 Channels use that.

Ok I figured it out, after pressing all listings then typed Hallmark then went through the list until I found a working one that matched the actual data.
Then did a guide update, just don't press "sync station mapping" or back in same boat.

Thanks