Mick Philpott tells the jury he didn't tell police that his friend Paul Mosley had had sexual relations with his wife Mairead because he was "ashamed".
He also told the court he felt it had no relevance to what had happened to his children on the night of the fire.
More top news
Lord Montagu, who founded the National Motor Museum at Beaulieu, has died aged 88 following a short illness.
Expensive fares and late arrivals make Britain's railways "second rate" compared to European rivals, a study has found.
Former England rugby captain Will Carling has played down his country's hopes of success at the 2015 World Cup.