Klitz..that's the one Bee-dubya-ell. Works like a dream. Covers all sins...:>)
The first time I painted over Paneling I filled in all the grooves with Joint Compound, then sanded them all smooth ect ect ect.
Next time I didn't..lol
It just depends if you want a smooth wall finish or a painted panel finish.
I like the painted panels. My Buddy uses the room as a Sewing workshop.
Getting rid of the dark panels made a huge difference.