On This Day — 28 January

28 January 1974

• ——: Opportunity Knocks - Lena makes her fourth appearance after winning the viewers votes for the third time.

28 January 2012

• ——: TVTimes - Contains a short preview of The Talent Show Story features a mention of Lena's appearance on Opportunity Knocks, and contains a small colour photograph of her.

28 January 2012

• ——: The Talent Show Story - Episode 4 had a short segment looked at Lena's rise to stardom and subsequent decline.