Sidewalk Scientist (Chinese: 學是學非; Jyutping: hok6 si6 hok6 fei1) is a Hong Kong TV programme broadcast by TVB and presented by Kaki Leung, Ali Lee, Jacqueline Wong, Mayanne Mak, Sammi Cheung, Roxanne Tong, Crystal Fung, Bowie Cheung, Tiffany Lau, Judy Kwong, Regina Ho, Honey Ho, Eunice Chan and Joey Thye.
[1] This programme explores the scientific knowledge in daily life through different experiments.
Despite its English title, there are also segments to correct common misuse of English or Chinese, to clarify of legal misconceptions and to introduce local history.
Sammy Leung was invited as guest host of the special episode of season 1 and has since become a returning guest host in following seasons.
A very wide range of topics have been covered by the show, such as: