A local court on Wednesday sent him to five days police remand.
In the television programme, the 31-year-old accused, Maninder Singh, who is a cab driver, confessed to killing his live-in partner a 27-year-old nurse Sarabjit Kaur at a hotel here on New Year's Eve.
Singh, a former murder convict who is currently out on bail, also confessed about a crime committed in Karnal in 2010.
"I killed her (Sarabjit Kaur) because she was having an affair with her sister-in-law's brother," Maninder told the news channel.
Confessing his previous crime, Maninder said he had killed Renu in Karnal. "She was also having an affair with a man from Uttar Pradesh," he said.
Singh was arrested while the programme was still on air as police rushed to the studio on Tuesday evening.
Haryana Police had arrested him for killing the woman in 2010. He was convicted by a trial court, but he later got bail from the Punjab and Haryana High Court.
Deputy Superintendent of Police Neha Yadav, who is investigating the case, told the media that his behaviour indicates that he is a psychopathic killer.
She said both the murders were committed when the victims, who were working, refused to marry him as he was jobless.
"Prima facie it seems that he committed the crime when his ego was hurt. And he has no regrets for the crimes," Yadav said.
She said Sarabjit's family was against their marriage as they were from different castes.
The police are yet to trace the knife that was used in the crime.
Interestingly, the news channel studio from where he was arrested was close to the hotel where he murdered Sarabjit on December 31.
She belonged to Sangrur and had worked at a private hospital in Mohali. She had been selected as a nurse at the All India Institute of Medical Sciences, Bathinda.
She was found dead in room number 301 of Hotel Sky on January 1. She and Maninder had checked into the hotel on December 30.
The accused told the news channel that after killing Sarabjit he stayed in various towns of Punjab. He reached the channel office in the evening and sought help in the confession of the crime. He gave a 23-minute interview, before being arrested by the police.
( With inputs from IANS )