The company owns seven channels, including UK Gold, known for repeats of shows such as Only Fools and Horses.
Robertson will take over from acting head Kate Thompson, who has been overseeing the role on a contract basis since last August.
Robertson’s appointment follows a review of UKTV’s PR needs, which has also seen the creation of two new roles.
MacLaurin account director Tamsyn Zietman joins as lifestyle PR manager in June. UKTV is currently recruiting for a PR manager to cover entertainment and drama.
Thompson said the review was ‘about upgrading roles and bringing in a new tier as the business moves forward’.
Robertson has for the last 18 months acted as a freelance PRO for firms including BBC Worldwide.