Every lunchtime, DailyEdge.ie rounds up the TV shows that you’ll be tweeting about tonight and talking about tomorrow.

The Imelda May Show (RTÉ One, 9.35pm)

The second season of the popular chat show returns to our screens tonight – and Kodaline, Hothouse Flowers and Fight Like Apes will be performing live in studio for the opener. #ImeldaMayShow

Celebrity Masterchef (BBC One, 8.30pm)

It’s the final tonight, and there are just three celebs left in the kitchen. Who will prevail and be crowned Celebrity Masterchef of 2015? It will certainly be drama-filled. #CelebrityMasterchef

Lookalikes (Channel 4, 11.10pm)

The much talked-about reality show gets its opening episode of the series repeated tonight. It shows a talent agency for lookalikes (including a wide range of stars from Barack Obama to David Brent) and it’s brilliantly cringe. #Lookalikes

Everybody’s talking about… MTV’s new documentary called White People

The documentary aired on Wednesday night in the US, and it dealt with issues of race in American society. It’s had everyone talking since:

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And it started a massive conversation on Twitter:

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It’s a one-off documentary that was made by filmmaker Jose Antonio Vargas, and has every TV columnist penning an opinion on it over the last 24 hours.

Or switch over for…

• Castaway (BBC One, 11.20pm) Tom Hanks and Willllsssooon stranded on a desert island. If you’re staying in, there are plenty of worse movies you could be watching
• Billy Connolly’s Big Send Off (ITV3, 9pm) A touching documentary from the Scottish comedian on life, death and comedy.
• Quads: Our First Year (UTV Ireland, 9pm) After years of trying for a baby, this couple had four in one go. This documentary follows the first year of their hectic new lives.