The broadcaster is currently assessing three pilots from different producers as it seeks to award an initial 16-week contract for the new daily programme, seemingly a magazine format akin to ITV's This Morning and BBC One's The One Show.
Richardson and Beaumont, who married in 2015 and have a daughter together, fronted a trial episode from The Nightly Show producers Second Act Productions and its parent company, ITV Studios, according to trade magazine Broadcast.
The other couples in the running are said to be Rick Edwards and comedian Susan Calman with Sky Studios-backed True North; and Stephanie McGovern and Nick Grimshaw, from BBC Studios-backed production company Expectation.
Set to be based out of Leeds - where Channel 4 is currently building its new national headquarters - the as-yet-untitled programme will broadcast live each weekday for at least an hour, and is described as "a key plank of C4's nations and regions strategy".
A decision on the winning bid is due to be made shortly, with the programme launching early in 2020. Broadcast also reports that none of the six trialled presenters are contracted, should their respective bid win the commission.
Richardson and Beaumont have starred on television together in the past, including in comic documentary Jon Richardson: How To Survive The End Of The World, and various episodes of the panel show Jon Richardson: Ultimate Worrier.
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