Channel 4 will broadcast four 30-minute episodes of Robert's Web, which will see the Peep Show star scour the internet for tweets, uploads, groups and celebrity websites.
Speaking about his first solo TV project, he joked: "Channel 4 have wanted to make this show for some time but Gary Internet is never available, so they've settled for me."
Meanwhile, Channel 4 commissioning editor Nerys Evans said: "The explosion of social networking commentary on the news provides a fertile ground for weird and wonderful comic material. We’re thrilled that Robert will host this show for us, bringing his smart satirical take on the nuggets he finds."
Robert's Web will be scheduled alongside award-winning sitcom Peep Show when it returns next year for its seventh series, making it the longest-running comedy in the channel's 28-year history.