How to use my old B&W's with my new big screen??

I agree Stanwal about the KISS approach with audiophile audio, unfortunately that particular KISS approach doesn't allow digital sound reproduction. You're missing a good portion of sound running analog two channel from a TV capable of so much more. This is where a receiver will excel without a doubt. Most prime time shows are broadcast in Dolby Digital.

Put me down as one who strongly dislikes the sound of movie theaters and avoids it at home. Since I find analogue superior to digital despite having $10k worth of CD players I doubt if a receiver would produce a sound I would care for. A friend of mine is using the receiver approach with B&Ws. I find mine sounds better. If you have an amp now hook it up as I suggest and see what you think.

Thanks for all your help. Pardon my ignorance, but what is the KISS approach?

KISS equals "Keep it Simple, Stupid" which IMO doesn't apply when you're setting up a HT system.