SHIPS

Victorious: Beck and Cat

One Direction: Zayn and Harry

You Me At Six: Josh and Dan

Harry Potter: Harry and Hermione 

Buffy the Vampire Slayer: Buffy and Spike + Tara and Willow

The Hunger Games: Gale and Katniss + Peeta and Finnick

Skins: Effy and Freddie + Nick and Franky + Grace and Rich

90210: Liam and Naomi

Gossip Girl: Chuck and Blair

How I Met Your Mother: Barney and Robin

Supernatural: Dean and Castiel 

Sherlock Holmes: John and Sherlock (I think this one is quite obvious)

Avengers: Science Bros + Steve and Natasha