stumped !! Fixed!!

Maybe I did not explain completely. Here goes: Cable from carrout Sat dish goes from Carryout to the "cable in" port in the basement. The cable from that port goes to the back of the switchbox and I disconnected it from there and attached it to the "sat in" on the back of the Dish 211k receiver. I have then attached a cable from the "TV out of the Dish 211K to the "cable in" port of the switchbox. I get a snowy picture on both TV's. When I attach a HDMI cable from the back of the Dish receiver to another small LED TV the picture is perfect so I know that the signal coming from the dish , going thru the cable in port in the basement and connecting to the Dish receiver is all good because the tv connected to the receiver via HDMI cable is perfect. I also took the cable coming from the main tv to the switchbox and disconnected it and pluged it directly into the "TVout " port on the receiver and the picture was still snowy so now I know that it isn't the switchbox.
I thank everyone for their time and great suggestions . This and all the other forums on RV.Net have saved me a lot of time and money.
Thanks
Dan