Possible Clues:

• "Dawson's Creek" network
• Network that aired 'Dawson's Creek'
• Network that merged with UPN
• "Gilmore Girls" network
• “7th Heaven” network
• Broadcast network shuttered in 2006
• 'Dawson's Creek' network
• Channel that aired 'Felicity' and 'Smallville'
• 'Gilmore Girls' airer
• '7th Heaven' network