very little power?

Hi everyone, just installed my mcintosh mx122 and mc207 to my front projector,cable box (Fios), dvd player, cd player, etc. When I play dvds or cds the sound is strong and powerful like it should be but when I play TV I get like 1/5 th the power and sound levels. I have checked all my connections but cannot figure out why everything works but the TV portion. Any suggestions or clues to what may be going on? Any help would be greatly appreciated. Thanks in advance.