Livingston comfortably won their first match under Richie Burke to worsen Airdrie United's relegation fears.
Head of youth development Burke was placed in charge of the first team following
And Livi could have fallen behind when Airdrie were awarded an early penalty following Jesus Garcia Tena's foul on Jamie Bain.
However, John Boyle blazed his spot-kick over and Anthony Andreu fired the hosts ahead with a low drive on 21 minutes.
Andreu's spectacular shot and Iain Russell's strike moved Livi into a 3-0 half-time lead.
The visitors had Sean Lynch dismissed after he picked up two bookings and Stefan Scougall's composed 12-yard finish extended the home side's advantage.
Boyle netted a late consolation with a shot into the bottom corner.
Livingston: McNeil, McCann, Barr, Garcia Tena, Booth (Talbot 79), Kyle Jacobs, Scougall, O'Brien, Fox, Iain Russell (Morton 70), Andreu (McNulty 59). Subs Not Used: Jamieson, Mullen.
Booked: Garcia Tena.
Goals: Andreu 21, 39, Iain Russell 44, Scougall 77.
Airdrie Utd: Robbie Thomson, O'Neil, Lamie, Buchanan, Warren (Lynch 46), Bain, Blockley, Hetherington, Liam Watt (Donnelly 70), Griffin (Kirkpatrick 42), John Boyle. Subs Not Used: Arthur, Moore.
Sent Off: Lynch (75). Booked: O'Neil, John Boyle, Lamie, Lynch.
Goals: John Boyle 90.
Ref: Stephen Finnie