Herbie the Nice is the thirty-second 11 minute episode of the animated series, Twipsy.
Herbie is a real pain: when he lures Twipsy into a trap it's just too much. Herbie must mend his ways! Nick, Lissie and Twipsy persuade Hypno the Great to hypnotize Herbie by computer. Soon Herbie changes into the nicest brother in the world - in fact, he's much too nice for the liking of Nick, Lissie, Albert and Twipsy. They try to reverse the transformation... 
- Amazon. 2015. Amazon.com: Twipsy - Season 1, Episode 32 "Herbie the Nice" [ONLINE] Available at: http://www.amazon.com/gp/product/B00LJEV5R8/ref=dv_dp_ep32. [Accessed 18 May 2015].
- 부산일보. 2020. [볼만한 프로그램] EBS 접속 트윕시 - 부산일보. [ONLINE] Available at: http://mobile.busan.com/view/busan/view.php?code=20001108000176. [Accessed 17 August 2020].