The conceit of “The Night Gallery” was that Serling would come out and talk about a painting on display in the “Night Gallery” and the teleplay, either an original story [many by Serling himself] or an adaptation of HP Lovecraft, Richard Matheson or another sci-fi or horror writer would follow. The paintings always related to the story that followed. It was a cool idea and I loved the show when it originally aired. [Keep in mind this was the early 70’s and I would have been 11 or 12.]
I’ve been watching episodes on RTN lately and I hate to say it, but many don’t hold up near as well as older episodes of “The Twilight Zone.” Part of the problem could be that “The Night Gallery” episodes in syndication are often cut or expanded to meet the half hour time slot.
I recently discovered this site dedicated to “Rod Serling’s Night Gallery.” It’s chock full of information about the series with everything from episode guides, to misconceptions about the series to a gallery of paintings used in each episode. If you have any interest in Rod Serling or “The Night Gallery” you should check out the site. It’s even more fun than some of the episodes it covers!