The GQ TV service, launching on 15 January, will feature streamed video from the shows on the homepage of www.GQ.com. Users can click through to the video page to see extended versions of the videos, plus further content such as different shows from the featured designers.
Coverage will include exclusive footage of the shows and backstage interviews with designers and industry opinion formers, including fashion commentators such as Charlie Porter, Jodie Harrison, David Bradshaw, David Lamb, Garth Spencer and GQ editor Dylan Jones.
The "face" of GQ TV will be Louise Roe, former host of The Clothes Show and BBC's What Not To Wear.
Maria Milano, Conde Nast Interactive's executive editor and editor of GQ.com, said: "The comment pieces will focus on the trends for next winter, and how you can achieve that look."
Milano added that the TV service is open to sponsorship, although none has yet been found.
The service will also continue after the two fashion shows. "GQ TV will keep going, covering parties, celebrities, film trailers, that are relevant to our readership," she added.
Last year Conde Nast launched Vogue TV on Vogue.com, sponsored by Estee Lauder at launch, and began screening films in London Fashion Week.
GQ.com has eight million page impressions per month, 500,000 unique users per month and 70,000 e-mail subscribers, according to Conde Nast figures audited by WebTrends.
In March, Conde Nast is to launch an interactive shopping guide called Stylefinder.com, its first UK website with no print companion.
The new site will target 15 to 45-year-old women, providing information on a range of fashion and beauty items, including high street and designer labels. It will have its own dedicated editorial content and e-commerce opportunities.