Episode 6

Angela Rippon, Gloria Hunniford and Julia Somerville examine the cleanliness of British hotel rooms. As lab tests prove there's a lot more to hotel hygiene than meets the eye, will booking into a more expensive hotel guarantee a cleaner room?

Plus, with complaints that some five-star hotels don't quite meet expected high standards, the team unravels what determines how many stars a hotel deserves.

Travel expert Simon Calder has money-saving tips for visiting the USA.