The writing is on the wall

So Sunday morning I go into my front room to open the curtains and upon doing so I notice on the wall near the T.V (right in my eye line) some odd looking marks on the wall. Now I've tried my hardest to capture the markings with my camera, but I found it really hard getting a photo without editing it in photoshop.

At first I thought to myself it's probably the result of my grandson, but upon reflection, he hasn't actually visited the house for over a week, and even then if had drawn on the wall we would of noticed it as it's right next to the T.V.

I can't make anything out in the sense of it being a word, but I will post it anyway, and put it down to one of the oddities of living here.