David Allen Grier Had Grey Hair Right?

is it just me or was David Allen Grier's hair gray on the premier episode of Thank God You're Here and then not gray on the last one?

i remember noticing the gray hair, but not in a bad way at all. then last episode... poof! it was gone? i wonder if that was his decision, or if he had one of those meetings with the higher-ups at nbc who said something to the effect of..."david man, we love you. we think you are doing a great job with the show. but we were looking at the numbers and we noticed that you are skewing low in the all important 18-34 demographic. so, to get those numbers up we want you to dye your hair and get rid of the gray! thanks. hey man, we loved you on In Living Color."