Description: 「是非之地」遍佈全世界，又豈止香港一處，梁嘉琪、李佳芯(Ali)、黃心穎(Jacqueline)、麥美恩(Mayanne)、張秀文(Sammi)和湯洛雯(Roxanne)六名「是非精」，眼見家鄉的是與非已難以「餵飽」她們的「是非之慾」，索性衝出香港「搵是搵非」！

「是非精」強勢回歸，一起踏足外地，從各地特色中尋找科學資訊。湯兆昇、黃健耀、吳恒亮、曾明蕙、陳鈞傑等專家學者，以及「神出鬼沒」的Captain森美，繼續提供可靠的「技術支援」，結合各項有趣的實驗，深入淺出地拆解健康、生活等方面的「是」與「非」，以科學角度辯證謬誤。

除了科學之外，法律、文字、俗語等文科範疇亦多生「是非」，「是非精」勢必發揮所長，在這些領域中發掘更多、更新的題材。一向頗受歡迎的中文正字、俗語解說等環節陸續有來，依舊由人氣甚高的歐陽偉豪講解。
Language: Cantonese
Country: Hong Kong
Release Date: 03 January 2016

• Sidewalk Scientist 4 – 學是學非 – Episode 41
• Sidewalk Scientist 4 – 學是學非 – Episode 40
• Sidewalk Scientist 4 – 學是學非 – Episode 39
• Sidewalk Scientist 4 – 學是學非 – Episode 38
• Sidewalk Scientist 4 – 學是學非 – Episode 37
• Sidewalk Scientist 4 – 學是學非 – Episode 36
• Sidewalk Scientist 4 – 學是學非 – Episode 35
• Sidewalk Scientist 4 – 學是學非 – Episode 34
• Sidewalk Scientist 4 – 學是學非 – Episode 33
• Sidewalk Scientist 4 – 學是學非 – Episode 32
• Sidewalk Scientist 4 – 學是學非 – Episode 31
• Sidewalk Scientist 4 – 學是學非 – Episode 30
• Sidewalk Scientist 4 – 學是學非 – Episode 29
• Sidewalk Scientist 4 – 學是學非 – Episode 28
• Sidewalk Scientist 4 – 學是學非 – Episode 27
• Sidewalk Scientist 4 – 學是學非 – Episode 26
• Sidewalk Scientist 4 – 學是學非 – Episode 25
• Sidewalk Scientist 4 – 學是學非 – Episode 24
• Sidewalk Scientist 4 – 學是學非 – Episode 23
• Sidewalk Scientist 4 – 學是學非 – Episode 22
• Sidewalk Scientist 4 – 學是學非 – Episode 21
• Sidewalk Scientist 4 – 學是學非 – Episode 20
• Sidewalk Scientist 4 – 學是學非 – Episode 19
• Sidewalk Scientist 4 – 學是學非 – Episode 18
• Sidewalk Scientist 4 – 學是學非 – Episode 17
• Sidewalk Scientist 4 – 學是學非 – Episode 16
• Sidewalk Scientist 4 – 學是學非 – Episode 15
• Sidewalk Scientist 4 – 學是學非 – Episode 14
• Sidewalk Scientist 4 – 學是學非 – Episode 13
• Sidewalk Scientist 4 – 學是學非 – Episode 12