Footage of the Ken Barlow actor taking on the incredible feat aired during Monday's edition of Lorraine.
Bill admitted he didn't even know many co-star's names.
'I felt a tremor and hoped that was a sign she knew I was with her.'
His 50-year-old daughter Vanya died from a long-term liver condition in March.
The actor made the decision to return himself.
The actor is on leave from the ITV soap.
Did you guess it correctly?
He's been in 'Corrie' for 57 years.
Spoiler! Ken Barlow's Life 'Hanging In The Balance' As He 'Suffers Second Stroke' In 'Coronation Street'
Are 'Corrie' fans about to bid farewell to the long-standing character?