Sholl, who left Portland in April to join ITV as its head of press, global content, has started at Five as head of strategic communications.
He joins ex-ITV colleague Dawn Airey at the channel, who left her role as director of global content at ITV earlier in the year to join Five as chairman and chief executive.
Sholl has a long professional relationship with Airey, having worked closely with her while she was at ex-Portland client Sky and been recruited by her for their brief reunion at ITV. He left ITV in June as Airey's replacement Lee Bartlett trimmed the channel's PR operations.
‘There were some fantastic opportunities out there, but the allure of working with Dawn again was too great,' Sholl said.
His role will include speech writing for Airey and other execs, commercial PR and internal communications.
His job is an additional PR role at the channel and will not affect its existing content based PR operation led by Paul Leather.