Poor quality cables, lower quality TV input selection made (coax, RCA, S-Video), a poor ground in the home, watching standard definition content on high definition display, upconverted HD content, failing piece of equipment, the high definition receiver is in the wrong mode or in Safe Mode.
- Check if Screen Shape Issue
Press the * button in lower left corner of the remote repeatedly to rotate through different screen shape settings.
- Reset Receiver
If the issue is only on ONE receiver, unplug the DISH receiver for 10 seconds and plug back in.
Please note: It may take up to 5 minutes for the reset process to be completed.
- Check Receiver-to-TV Configuration
Check that the wiring between your DISH receiver and your TV is configured properly using Receiver to TV1.
- Secure Receiver-to-TV Connections
Check that the connections between your DISH receiver, your TV, and any component(s) (VCR, DVD Player, etc.) in between are secure.