Channel 4 has commissioned three new comedy pilot commissions for 2014, as well as confirming the return of several long-running shows.

Sheridan Smith has already begun filming Flack, in which she stars as a PR executive, struggling to balance her own life, while trying to solve the outrageous problems of her celebrity clients.

Catastrophe has been co-written by Twitter comedian Rob Delaney and Pulling’s Sharon Horgan, who will both star as an American man and an Irish woman who embark on a relationship in London and ‘make a b****y mess’ along the way.

David Baddiel is to write and direct Sit.com – a traditional family sitcom with the added twist of looking at the infiltration of technology into people’s everyday lives.

Channel 4’s head of comedy Phil Clarke said: “The latest batch of pilots spring from a set of witty, clever, knowing scripts that reflect the complexity of modern life.

“Flack deals with the world of work; Sit.com, family; and Catastrophe maintaining a relationship. They represent a strand of comedy that I would like to expand on the channel.”

The channel also confirmed the return of The Midnight Beast, Friday Night Dinner, Derek, Cardinal Burns, The Mimic, Man Down, Toast Of London and Noel Fielding’s Luxury Comedy for new series next year.