re: #23 Rightwingconspirator

Had an “Oh Noes!” moment today. Removed 50-year-old paneling from one wall, filled holes, primer, and paint, easy peasy. Next wall, removed paneling to discover 62-year-old wallpaper on the wall. Some say use oil-based primer and then paint. Some say 1/4” drywall, tape, mud, then primer and paint.

I really have no idea.

As Austin Blue said, depends on what’s under it. A painted or properly prepared (with sizing) wall and you should be able to strip it. (Roll a doohicky with little pointy bits all over it and steam or apply wallpaper stripper.) Unfortunately, occasionally wallpaper goes up over bare drywall. This leaves you removing bits of wallpaper (and the underlying paper on the wallboard) with tweezers and leaves a rather rough surface. You can skim coat it with drywall compound or just go over it with “texture paint”.
You can prime and paint over most wallpaper, but in my limited experience, it will never be perfect.