The service was first launched on September 20, 1998, then branded as TV3 News and later as 3News hosted by Grainne Seoige and Alan Cantwell.

A year later following a failed attempt to compete with RTÉ News: Six One this bulletin was moved to 17:30 and 19:00.

Following the TV3 Group's acquisition of content from ITV and a schedule change the 19:00 bulletin was moved to News @ 6.30 eventually being dropped in April 2007.

[citation needed] In 2017, €3 million was invested in news output by the broadcaster featuring a "state of the art" studio which launched on 4 September 2017.

CNN services have also been availed of during the 2008 election of Barack Obama as President of the United States and the 2009 Death of Michael Jackson.

[citation needed] Agenda was a political magazine show hosted by David McWilliams; it ran from 1998 to 2001 on Sunday mornings and repeated in the afternoon.

In 2009, TV3 announced a new business show that would effectively replace the original slot held by both Agenda and The Political Party airing every Sunday at midday.

In 2009, TV3 also started to broadcast the current affairs show Midweek, which airs weekly each Wednesday night and focuses on the latest political and topical issues affecting Ireland.

It was a much more tabloid version of other current affairs shows on Irish television dealing with issues such as mail-order brides, alternative medicine, gangland crime, etc.

However, in December 2008, these weekend bulletins were reduced to five minutes, this cut blamed on a downturn in advertising revenues.

After successful ratings of the more easy-going Friday night election specials in the run-up to the 2011 Irish general election, which often featured Marie-Louise O'Donnell as guest, TV3 chose to continue in the same vein with a new spin-off show entitled Friday Late with Vincent Browne, presented from the Ireland AM studio by Vincent Browne, and taking on The Late Late Show, presented by Ryan Tubridy on RTÉ One.

Friday Late with Vincent Browne featured guests such as Ray D'Arcy, Linda Martin and Jedward in its first episode.

It is presented by Caroline Twohig (News), Paul Walsh (Sport) and Cassie Stokes (Technology).

[citation needed] Note, the main and relief news presenters are all female.