Dahveed, it sounds like the "other commentator" with Jean-Paul Loth is... Thierry Roland .
I was in France for last year RG 1/2 and finals and watched it on tv. I was actually positively impressed with JPL comments. He was trying to give some technical details. However, I seem to remember he would be interrupted by "the other".
I discussed this with someone who is doing some comments as advisor on a cable / satellite channel. He told me that unfortunately, 99% of the spectators are more interested in players' private life than in the technical details of a match .