I removed the empty season. The Heartbreak High website has six (slightly different) seasons. Australian Television has seven. The only official page I've found isn't very helpful and the three Umbrella Entertainment DVDs do not follow the original order. It should definitely be looked into.

Amazon Prime currently has some episodes available to view from 'series 1-3' which are the Network 10 episodes. These are the ones that technically throw the later ABC episodes out of kilter with season numbering.

https://www.amazon.co.uk/gp/video/detail/B07P7H66JJ/ref=atv_dp_season_select_s2

Season 2 lists all of the 1995 episodes & then season 3 lists 1996. This would suggest that wikipedia and then everyone else has split season 2 in to 2 seasons rather than 2 parts (which loosely follows school terms).

I'm inclined to stick with 6 seasons (3 for each network)

@Ronnie7 said:

Amazon Prime currently has some episodes available to view from 'series 1-3' which are the Network 10 episodes. These are the ones that technically throw the later ABC episodes out of kilter with season numbering.

https://www.amazon.co.uk/gp/video/detail/B07P7H66JJ/ref=atv_dp_season_select_s2

Season 2 lists all of the 1995 episodes & then season 3 lists 1996. This would suggest that wikipedia and then everyone else has split season 2 in to 2 seasons rather than 2 parts (which loosely follows school terms).

I'm inclined to stick with 6 seasons (3 for each network)

Please disregard this opinion - Have now been through Amazon's offering & their numbering is worse than anywhere else - Season 1 + first half of Season 2 is actually Season 1 everywhere else, still battling to work out where their Season 3 fits in!

It's been a while ....

So, since the last debate Netflix has the rights now and has the episodes ordered as everywhere else does with S2 & S3 split

https://www.netflix.com/gb/title/81340922

Essentially S3-6 here need bumping forward a number to become S3-7. S2 then needs splitting into Eps 1-13 = S2, Eps 14-27 = S3

Thanks @Ronnie7. This is all good to know. But we still need to figure out what the original season cuts are (i.e. seasons originally used on TV in Australia).

@banana_girl said:

Thanks @Ronnie7. This is all good to know. But we still need to figure out what the original season cuts are (i.e. seasons originally used on TV in Australia).

I think I may have found an answer .....

https://televisionau.com/2015/08/1995-august-26-september-1.html

"Network Ten has picked up Heartbreak High for its fourth season. Some changes to the show’s cast include former E Street star Diane Craig stepping in as Hartley High’s strict new principal. Also joining the series are American-born Deni Gordon and newcomers Rupert Reid and Tara Jakszewicz."

Ignoring the Network 10 reference, production wise this would fit with the split that Netflix etc have.

Please fix this. The real order here: https://thetvdb.com/series/heartbreak-high#seasons I mean you are using order from some unofficial website as the most valid? WHY? Aussie tv, 1st three seasons published on dvd + netflix have all the same order with seven seasons. Please use that. For people who watch dvd or binge it this order here doesn't serve. I also watch it in its original run, never saw the order from this unoffical website. My point you have more sources for order with 7 seasons but you're using 1 unoffical source from some fan website? Strange. I think aussie tv, netflix, dvd official releases are more valid sources than 1 strange website. So please fix it. Thanks

Also IMDB and the TVDB are using 7 seasons order. So please, fix this. P.S. The first series, which was initially centered around the Poulos family, consisted of 38 episodes and premiered on Network Ten on 27 February 1994. A second series of 14 episodes premiered on 21 May 1995, and began following a floating timeline, with the students established as being in their last school year and preparing for the HSC, but not sitting for their exams until the beginning of series five (after enduring several cast changes and with nearly two years passing in real time). A third series of 13 episodes premiered on 20 August 1995.

The show was axed after two years on Network Ten, however 26 more episodes were subsequently produced with funding from BBC2. They aired the first thirteen episodes in the UK from 26 March 1996 to 16 June 1996, then thirteen more episodes from 3 September 1996 to 3 December 1996. Network Ten eventually aired these episodes to meet their local drama quota in a late night timeslot from 5 August 1996 to 11 November 1996, splitting the 45-minute episodes into 23-minute parts, allowing two episodes to be aired weekly across four nights (Mondays to Thursdays). Although later (and international) airings of the episodes were screened in full, the show would continue to follow this soap opera formula in Australia when it was subsequently bought and revived by the ABC.[5]

Series five first aired on BBC2 in the UK from 10 December 1996 to 14 October 1997, and in Australia on the ABC from 3 February 1997[6] to 19 June 1997, a total of 39 episodes.[7] This series had the most significant cast change, with the majority of remaining cast members being phased out of the show within the first six episodes, and the show shifting focus from the Bordino family onto the Scheppers family. A new school year begins from the eighth episode onwards and continues in a floating timeline, with students in their last school year but not sitting for their HSC exams until midway through series seven (with over two years passing in real time).

Series six marked the debut of Hartley Heights, the student's new school location. The first 20 episodes of series six aired on the ABC from 23 June[8] to 28 August 1997.[9] After nearly a year of repeats, 20 more episodes aired from 1 July[10] to 8 September 1998.[11]

The seventh and final series first aired on BBC2 in the UK from 8 December 1998 to 9 November 1999, and in Australia on the ABC from 15 July[12] to 1 December 1999, for a total of 40 episodes.[13] The show was eventually cancelled as selling another series to foreign TV stations proved increasingly difficult. BBC2 had no interest in buying an additional series, due to scheduling delays a backlog of episodes had built up, and the program was forced to wrap up production.