DJ Dave Lee Travis has been bailed after his arrest in connection with the Jimmy Savile sex abuse inquiry.
The former Radio 1 star, from Leighton Buzzard, Bedfordshire, was held at 7.45am on suspicion of sexual offences.
Police said the allegations made against the man do not directly involve Savile, and are classed under the strand of their investigation termed "others".
He was bailed to return on a date in early January.
Travis returned home at 9.15pm in the passenger seat of a silver car. He stared straight ahead as the vehicle was mobbed by photographers.
Three police officers stood nearby as the car drove slowly through the gates. One officer told reporters that Travis would not be making any comment for now.
His arrest came as the Metropolitan Police revealed they are now dealing with around 450 potential victims, the majority of whom claim they were abused by Savile.
This has risen from around 300 possible victims the force said they were dealing with last month.
Officers are looking at three strands within their inquiry: claims against Savile, those against Savile and others, and those against others.
Most of the "others" allegations have been made against people associated with the entertainment industry.
Ex-glam rocker Gary Glitter, comedian Freddie Starr and a 73-year-old man have already been arrested and bailed in connection with the investigation.
A 1977 episode of Top Of The Pops featuring Travis was due to be shown on BBC4 on Thursday night but was pulled.
Last month Travis vigorously denied allegations that he groped two women while in BBC studios.
Dame Janet Smith, who is reviewing the corporation's practices during the Savile years, called on potential victims, witnesses, people who worked with the TV presenter and senior staff at the time to assist the investigation.
According to the inquiry's website, the review also wants to hear from people "who were familiar with the culture or practices of the BBC" in terms of "preventing or enabling the sexual abuse of children, young people or teenagers".
In addition, the Department of Health is investigating its own conduct after appointing Savile to head a task force at Broadmoor high-security hospital in 1988.