the clip shown on the medium and long versions of the beginning, that show Blanche pulling her arm inside her sleeve then dangleing the sleve
Does anyone know what episode that is from?

That scene is from the episode called Break-In. However, that scene was never shown in syndication or on Lifetime. I have no idea if that scene was even shown on NBC when it originally aired. I know it's from that episode because they are wearing the same outfits they did in that episode. This scene may have been cut near the beginning sometime before or after that security salesman stopped by.