This week, RTÉ are taking up residence on a farm in Co. Waterford for an incredible five nights of access-all-areas farming.

Tonight on RTÉ One at 7pm, guest presenter Marty Whelan joins hosts Ella McSweeney and Áine Lawlor for day two of Big Week on the Farm, live from Gillian O'Sullivan's farm.

Listen to Marty speak on The Ray D'Arcy Show above.

Marty Whelan will join the Big Week on the Farm team tonight on RTÉ One
Marty Whelan will join the Big Week on the Farm team tonight on RTÉ One

After an incredible night of farming technology and milking cows with comedian Alison Spittle, we're returning to Co. Waterford to learn if it is possible to create artificial beef and ask the question would you eat it?

Plus we follow a vet who in the course of performing a routine operation on a cow finds something very sinister and we visit Roscommon evening mart for a sale, but only after a makeover.

Finally, in the busy maternity ward of the O’Sullivan’s farm, will we have a live calving?

Big Week on the Farm
We might have a live calving on tonight's Big Week on the Farm

If you've been following our Big Week on the Farm news, you'll know all about Aaron, the 19-year-old farm trainee from Tralee.

Despite having no previous experience, Aaron seems to have thrown himself into life on the farm and although he may still be finding his feet, we bet the O'Sullivans will make a farmer out of him yet.

Watch the video below to see our young trainee experience his first calving!

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It's all happening live on RTÉ One at 7pm tonight! If you missed last night's episode, catch up on RTÉ Player.