Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Which On demand has a pay and a Provider of virgin media (formerly ntl:telewest)?

### Inputs:
table_name: table, columns: ['Provider', 'Years', 'Free or pay', 'Transmission', 'On demand']

### Response:
SELECT On demand FROM table WHERE Free or pay = pay AND Provider = virgin media (formerly ntl:telewest)