(Thanks to the great uploader "Sean Mc" for these and so many more great promos)
Notice that this one starts with a bumper as Dark says we'll return to V after the following messages. Even this is not just a throwaway. There's real tension in his voice--not because we're afraid of the promos revealing the weakness of NBC's prime-time schedule, but because aliens are invading.
Then the Real People promo has Dark teasing Byron Allen's aerial adventures, complete with an "Up, up, and away!" serving as a playful nod to a character Dark had voiced: Howard the Duck. (I'm kidding; it's Superman, of course).
Yes, the single word then offers a smooth transition to a Very Special Episode. Listen to how Dark downshifts effortlessly to tell us about this "emotion-filled" Facts of Life with hushed tones.
Next up, it's Remington Steele, and Dark calls him "the sexiest, smoooothest private eye around" as he goes into "I'm talking about looooove" mode.
He follows that line with, "Who but Remington Steele would dare to follow The A-Team?" and his jovial line reading is a perfect complement to a wacky stunt.
I love hearing Casey Kasem's voice on the NBC promos of the era, but Dark was the man. He was the smoooooothest voice-over guy around.