What is remote code for insignia TVs on a radio shack 4 in one remote?

To program a Radio Shack 4-in-1 remote for an Insignia TV, you can try using the code 1004, 1005, or 1006 as starting points. To enter the code, hold the "TV" button until the LED lights up, then enter the code. If the LED turns off, the code is accepted. If not, try the next code until you find one that works.