Monitor as info screen

I'm using ComputerCraft advenced monitors in survival ftb server. I need to make a shop sign what shows the text all time but if I go away from it then it turns the monitor off. Every time i have to run the program again. I have seen other same type monitors showing text all time, even then if there's not players near it. I tried to change the program with repeat or loop commands but it does not work.
Please help!
Thanks

If no one is around to see it, how do you know the display is displaying? :P/> Anyways, what you need to do is rename the program file to startup, that way the program will be ran whenever the computer boots.