Hey Golightly, Too funny, that's a Style Dept episode that I didn't work on! The fireplace in question was, I believe, dry brushed with white paint to give it that semi-antiqued look.

After making sure your brickwork was clean and dust free (give it a vacuum) your best bet would be to pick a side or egde that isn't to visible and then give it a go. You'll need a bristle paintbrush (not a foan brush), good quality white paint (preferably a semi-gloss for durability, don't worry it won't look shiny) and a rag. Lightly dip your brush, wipe most of the paint off, and then start brushing in lots of different directions. You can layer more paint, if needed, to get to the desired 'whiteness' that you want.

Depending on your style, you might want to consider painting out the brick entirely for a cleaner more modern look. In that case, after vacuuming you'll need to prime the brickwork (I'd suggest Zinsser Bulls Eye 123 from Home Depot) before giving it a couple of coats of your final colour.

Good luck!

Cheers, Arren