The 20-part, as yet unnamed, series is being made by RDF Television, on behalf of Channel 4. Filming will start in April or May, with the transmission date currently scheduled for early autumn.
The programme will attempt to explore the thought process behind what Watson calls "the unedited verbal vomit that spews out from every online review and social media site".
She will aim to show that there are two sides to every the story, asking if the business are genuinely at fault and whether the reviewers are being fair.
"For instance, you can't spend £60 a night and expect fabulous bathrooms and flawless decoration," she said.
"As a presenter with 30 years' experience in the industry, my role is to visit the businesses and quiz both the owners and the reviewers to find out where the truth lies and try to establish a balance."
The programmes will feature the operators of restaurants, hotels and visitor attractions, alongside the authors of the reviews. Watson will conclude each programme with her verdict as to whether the reviews are fair or unreasonable.
Operators who believe they have been the victim of an unjust review and would like to take part in the programme should e-mail firstname.lastname@example.org.
Watson, who owns the Crown and Castle in Orford, Suffolk, with her husband David and Tim Sunderland, has previously presented The Hotel Inspector for Five and Country House Rescue for Channel Four.