He was due to announce plans for a fundraising concert in his children's memory.
Andrew McGinley, who was dropped from RTÉ's Late Late Show line-up, says he would never set out to intentionally upset anyone.
He was due to announce plans for a fundraising concert in his children's memory, who were killed by their mother when she was suffering a psychotic and depressive episode in 2020.
Longford Fine Gael Senator Micháel Carrigy is calling for an explanation as he says full transparency and clarity is needed from the national broadcaster.
Mr. McGinley says he was left off the show after a small number of people objected to the station;
RTE says it received representations from other family members in relation to Andrew McGinley's planned appearance on the Late Late Show.
It initially said there were a number of objections from people who said it would be upsetting, and today in a statement it suggests it received representations from "other family members".
The broadcaster says it explained the reasons to Mr McGinley.