hello, I am new to the forum. I am also new to HD tvs. I have just bought a samsung 58inch led smart tv and i am having issues with the picture quality when the image is in a darker setting. ill give the example that i was watching the series arrow with my husband and the characters were in a dark setting(dungeon,underground lab...) and the image had these gray pixelated snow type pixels....the image then looks non hd...i have no idea why it doe this. i know the tv is a 60hz, someone told me that could be the reason. and also the tv is in the infamous 5 series wich i heard was not great. i know i dont have the best hd tv but i find it sad that in dark picture setting it looks like ****...can someone help me i would so appreaciate it.