Help with hook-up PLEASE

I hate to ask such a dumb question, but I need HELP.....I purchased a new Tv, our old one was 30 years old so we had to use a RF mod.. Now I can not get my stuff hooked up. We have Dish network, DVD recorder, VCR. If someone would send to detailed instructions I would be very greatful....The manuals are of no use to me...Thank You!!!!