I don't have panelling, but this is a great tutorial to make it look like drywall.
When we bought our house a few years ago, there was A LOT of wood paneling... I've tried literally EVERY method, but the one I use is EASY and covers perfectly! Only 2 coats!
How to Cover Wood Paneling (with Pictures) - wikiHow
Painted wood panelling More
House Renovation: Week 12, Paint That Paneling, People! - Southern Hospitality
How to EASILY Paint Over Wood Paneling
Image titled Cover Wood Paneling Step 15
Peel-And-Stick Wood Panels Provide An Instant Reclaimed Look | Co.Design | business + innovation + design
painted paneling makeover. My mom needs this. I'd offer to paint it just to cover those ugly walls in the every room.