Regular contributors have included Stuart Bailie (who also writes for NME magazine), Phil Taggart (BBC Radio 1), Niall Byrne (Nialler 9), Paul McClean, Helen Toland and Bernard Keenan.
Mike Edgar had been drummer with Cruella de Ville and started the programme presenting on Monday, Tuesday and Wednesday evenings.
During this period, there were several non-music features such as The Week in the World of Politics, presented by contributors such as Malachi O'Doherty and sketches from The Hole in the Wall Gang who would later go on to star in Radio and TV shows of their own.
Over its three decade span ATL radio has had various core presenters for the main indie and rock shows most notably Mike Edgar, Donna Legge, Rory McConnell and Paul McClean (co-presenting) and Rigsy (David O'Reilly) but has also regularly entertained guest presenters and co-presenters such as Michael McKeegan from Therapy?, Snow Patrol, David Holmes, Radiohead, In Case of Fire, Two Door Cinema Club and General Fiasco.
Broadcasting live from the venue (and later making its way onto BBC Two Northern Ireland), the event featured a surprise appearance from Snow Patrol after performances from Ash, Divine Comedy, Duke Special, Therapy?, Foy Vance, Panama Kings, Cashier No.9, Kowalski, LaFaro, Fighting with Wire, The Lowly Knights and many more.
In 2010, Phil Taggart was asked to stand in for regular presenter Rigsy on Across the Line after taking part in a work experience scheme.
The Tides won in 2006, with Busted guitarist James Bourne, Kerrang Editor Paul Brannigan and MTV presenter Emma Griffiths on the judging panel.
Nice N' Sleazy won in 2007, with Divine Comedy frontman Neil Hannon, NME writer James Jam and Therapy?
ATL Rockschool returned in January 2008, presented by Rigsy and Jill Morgan and was won by a new act called The Good Fight.