The host did not explain why the anticipated guest, Mr Gachagua, was not on set, sparking speculations online.
Some accused the government of threatening the media station against hosting the former DP.
Former Deputy President Rigathi Gachagua on Monday denied reports that State House had barred a local television station from hosting him for a live interview on Sunday night.
Mr Gachagua had on Saturday, while in Kirinyaga County, publicly announced that he would be live on Inooro TV's Kiririmbi (flame) show from 7pm to 9pm.