Here is the version I heard my uncle sing - 40 years ago or more...

She likes a little bit in the morning.
She likes a little bit in the afternoon.
At half past three, when it's time for tea,
She likes it to the music of the BBC.
She likes a little bit in the evening,
By the fire nice and bright.
And when good night is said,
She takes it up to bed,
Just in case she wants a little bit in the night.