You need to connect to the number 1 input. The reason the receiver will not let you change the guide setting for the HD is because you have selected a SD dish. You can try the set up for 2 receivers but you will get a message that there is no signal on receiver 2. I'm not sure why you're setting all this manually. If you go through the satellite set up and let the receiver choose, it should do all the proper settings itself. Once set properly, you may have to go to DirecTV site and have them refresh your signal. Are you sure the lnb on your dish is good. Using the satellite set up for the receiver will usually do a dish check and tell you if there is an issue. Our HR 24 took about 5 minutes to set up. ChuckChuck
