How do I rescan/reprogram TV channels?

A lot of student are asking about TV channels, and how to see them.  All TV’s are different in terms of rescanning procedures. The following is a general guide, but the steps or the terminology may be different for your device:

1) Press the “Menu” button on your TV, or TV remote
2) Go to “Setup” or “Settings”
3) Go to “Installation” or “System” or “Channels”
4) Go to “Scan channels”, “Program channels”, “Autoscan”, “Autoprogram”, or “Autotuning”
5) Press “Select” or “Enter” or “OK” to start the scan