Season 9, Episode 4, "Twilight's Seven"

http://rodolfomushi.deviantart.com/art/Brothers-gonna-Brother-389683731

Synopsis: Twilight and Shining Armor pit their wits against each other to settle a long-standing sibling rivalry, but they soon discover they are not the only competitors.

When I wanted to find a header that's the siblings watching TV, this was strangely relevant.

Good morning everyone. Enjoy the episode.