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

### Instruction:
What channels have stations that were affiliated in 2002?

### Inputs:
table_name: table, columns: ['City of license/Market', 'Station', 'Channel TV ( DT )', 'Year of affiliation', 'Owned since']

### Response:
SELECT Channel TV ( DT ) FROM table WHERE Year of affiliation = 2002