Jennifer Love Hewitt's Medium clone, Ghost Whisperer, hooked a solid 11 million viewers in its debut Friday. The CBS drama ranked as the night's most-watched show. NBC, meanwhile, got a decent performance out of feel-good reality show Three Wishes, which bowed at 9 pm with 8.6 million viewers. Less impressive was the 10 pm premiere of NBC's Inconceivable: The fertility-clinic soap arrived stillborn with 6.4 million viewers.