This time around, the media landscape is "completely different," says Keach Hagey of the Wall Street Journal.
The reunion will help these companies navigate a competitive streaming landscape, according to analysts.
TV oldies like “I Love Lucy” and “Bewitched” have managed to hold on to devoted superfans more than 50 years after they aired. There’s a vibrant market for memorabilia.
A decade after they were split apart, the media parent company controlled by Sumner and Shari Redstone suggests CBS and Viacom should come back together.
The power struggle underway at the top of the media company comes at a tricky time.
Could the head of CBS and Viacom be headed for the great boardroom in the sky?