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- How your TV gets channel signal, through antenna or any cable box?
- What is the model number written on back of your TV?
- Can you elaborate 'HIM Screen' mentioned in question?
These info will help to troubleshoot the issue.
548d510na15 seems serial number, please recheck and get me the model number of TV.
Also, reply with info requests asked in previous response.
1- How your TV gets channel signal, through antenna or any cable box?
2- What is the model number written on back of your TV?
3- Can you elaborate 'HIM Screen' mentioned in question?
OK, TV must be contented to Antenna to get air channel signals during channel scan so please make sure antenna is plugged in TV securely and tight then run channel scan so it can get local channel signals.
Without any antenna TV wont receive channel signals thus nothing will store in TV memory and it will keep asking to run channel scan. Since TV gets directv signal though HDMI input so it goes back to working input of TV which is quite normal. I trust my input will help you out. Please feel free to respond if you have any additional questions.
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OK, so directv box hooked to HDMI-1 or HDMI-2 of TV?
Also, is there another satellite box hooked to TV HDMI input?
Can you please provide me all these info in one reply so I can understand the situation?