Season 0 of Upin & Ipin premiered on February 12, 2009.

Season 1 of Upin & Ipin premiered on September 14, 2007.

The first season of Upin & Ipin was published specifically to celebrate Ramadhan 2007 to educate children about the meaning and importance of the holy month. The great response to this short series prompted Les' Copaque to publish another season in connection with the next month of Ramadan. The first season of Upin & Ipin won the Best Animation award at the 2007 Kuala Lumpur International Film Festival.

Season 2 of Upin & Ipin premiered on September 5, 2008.

The second season, titled Upin & Ipin: A Year Later, airs at 7.00pm each episode. This season consists of 12 episodes, the first half of which is broadcast on Fridays, Saturdays and Sundays throughout the month of Ramadan (the first showing in the first half of the month, repeats in the last half of the month) and the other half in conjunction with Hari Raya Aidilfitri from 1 to 6 Syawal. This season is sponsored by Colgate-Palmolive Malaysia which promotes the release of Colgate Kayu Sugi toothpaste.

Season 3 of Upin & Ipin premiered on February 2, 2009.

The third season of Upin & Ipin, which carries the full title Upin & Ipin and Kawan-Kawan, began on February 2, 2009. From mid-May, three episodes are shown (including reruns) every week from Monday to Saturday, at 7pm, followed by broadcast three-in-one on Sundays, from 7.00 to 19.30.

From May 14, Upin & Ipin show hours are limited to weekends, Friday to Sunday, at 17.30. In addition, TM was announced as the main sponsor of the Upin & Ipin and Kawan-Kawan series until now.

In September, the broadcast of Upin & Ipin is shown again every Monday to Sunday with new episodes in connection with the month of fasting and the end of the school year holidays. The third season ended with "Treasure Island Adventure (part 8)" released on December 30, 2009, making it 18 episodes in total.

Season 4 of Upin & Ipin premiered on March 15, 2010.

The fourth season of Upin & Ipin and Kawan-Kawan started on March 15, 2010 with the episode "Juara Kampung (Part 1)", in addition to the introduction of a new brand with title cards in the form of colored pencils in the exercise book. Asyiela Putri replaced Fathiah as Upin & Ipin's voice changer. This season is also sponsored by the TM company. Previously, Asyiela translated the third season of the series Upin & Ipin in English for Disney Channel Asia. The first nine episodes of the fourth season were filmed during the two school holidays in 2010 in connection with the Thomas Cup and the World Cup. Reruns of last season's episodes are also broadcast on Saturdays and Sundays, at 17.30 until August. During the Ramadan season (August - September), the Upin & Ipin time slot moves to every day, at 7pm, with a new episode. This concludes with a one-hour marathon filled with six new episodes titled "Menjelang Syawal" and "Bila Besar Nanti".

Season 5 of Upin & Ipin premiered on March 12, 2011.

The fifth season of Upin & Ipin premiered on 12 March 2011 with the first screening of each episode in a half-hour format on Saturdays, 7.30pm during the school holidays. In this new season, Upin & Ipin and their friends begin to learn human values that will surely touch the audience's feelings. Interestingly, Upin & Ipin and friends will get to know famous Malaysian icons such as the Petronas Twin Towers.

Season 6 of Upin & Ipin premiered on March 18, 2012.

In connection with the sixth season, the screening slot of Upin & Ipin has been moved to Sunday at 6 pm, starting March 18, 2012. .

The complete title of this season is Upin & Ipin Season 6.

Season 7 of Upin & Ipin premiered on March 9, 2013.

In relation to the seventh season, the screening slot of Upin & Ipin has been moved to Saturday at 18.30 with the Lunar New Year story starting on March 9, 2013. The first episode of season 7 was supposed to air on March 2, 2013, but due to technical problems. Problems faced by TV9, the first episode was shown on March 9, 2013. .

The full title of this season is Upin & Ipin Season 7.

During Ramadhan (July - August), the Upin & Ipin slot moves to Saturday at 19.30.

The special episode that coincides with Hari Raya is shown on the first Idul Fitri from 15.30 - 16.00.

As for the eighth season, the series Upin & Ipin returns to the format of one day, one day, three days in a row (except for "Fasting Experience" where all episodes air on the same day but Part 1 is separated by Part 2 and Part 3) for two hours.) for the premiere on TV9 while previously it showed three consecutive episodes in a half-hour slot. This season is sponsored by the Malaysian Anti-Corruption Commission and has an episode featuring the issue of bribery in the context of World Anti-Corruption Day, December 9, 2014. In addition, this season is sponsored by Toyota.

Two mischievous yet lovable five-year-old twins and their friends enjoy daily life and new discoveries with the residents of their Malaysian village. New experiences, friends and lessons await as the twins watch chicken eggs hatch, welcome Ros' pen pal from overseas and learn disease-fighting tips.

Season 10 From the meaning of Syawal to the art of shadow puppetry, the twins have plenty to celebrate about their kampung and culture this season.

Season 11 With excursions into prehistoric lands, futuristic cities and the deep seas, Upin and Ipin are stretching their imaginations like never before!

Season 12 of Upin & Ipin premiered on May 23, 2018.

In Season 12 Life gets extra entertaining for Upin and Ipin this season as they meet a celebrity chef, audition for a TV commercial and enter a radio competition.

This season, a red parrot brings chaos to the kampong, the twins train for their first race and a swallowed rambutan seed leads to a unique journey!

This Season 14 Upin and Ipin get up to more fun as they play detectives to find a lost notebook, test a special hair growth remedy and try their hand at first aid.

Watch upin & Ipin's heartwarming behavior as they explore and learn new things together with their fellow villagers.

The series centres on a pair of 5-year-old twin boys, the titular Upin and Ipin, who tell stories of their everyday lives through fun and amusing actions with their friends while also learning new things during their day to day activities. Like every other children, Upin and Ipin are very mischievous and often find themselves getting into trouble, most of the time with their teenage sister Ros.