Find 30 Rock seasons 1-7 in On Demand > Box Sets

Tina Fey is one of the most influential – and funniest – creators of comedy this century, and 30 Rock is her masterpiece. So far. Set behind the scenes of a comedy show and featuring an all-star cast (and an even more impressive roster of guest stars), this is a show that rarely falls below “hilarious” for more than two minutes at a time, and hits “laugh-out-loud” several times an episode. And now all those episodes – 138 of ’em! – are available to enjoy any time with Virgin TV On Demand.

Fey stars as Liz Lemon, the head writer of a possibly rubbish Saturday Night Live-style sketch show starring the spoiled Jenna Maroney (Unbreakable Kimmy Schmidt’s Jane Krakowski) and the uncontrollable Tracy Jordan (Tracy Morgan, who, like Fey, is a veteran of the real Saturday Night Live).

When the network installs a new boss – snobby, conservative Jack Donaghy (Alec Baldwin) – Liz tries her best to protect her show. Except when she totally fails. Or gets distracted by her own tendency towards nerdy uselessness mixed with wildly misplaced over-confidence.

They’re supported by a brilliant ensemble cast – including devoted, strangely innocent studio page Kenneth Parcell (Jack McBrayer) – and the aforementioned huge guest stars, from Oprah to Seinfeld to Aaron Sorkin. It all adds up to a fast-paced, endlessly quotable sitcom that’s won tons of awards and stands as one of the true comedy greats of recent years. Here are just some of the reasons 30 Rock is the best TV comedy you’ve never seen (or should definitely watch all over again)...