Related Clues:
- Walter Cronkite's network
- Broadcasting giant
- Symbol of simplicity
- Multiple choice choices
- 'Gunsmoke' shower
- Alphabet run
- Epitome of simplicity
- 'The eye' network
- 'The Nanny' network
- Agatha Christie's 'The ___ Murders'
- Phone button trio
- Telephone trio
- Paradigm of easiness
- Epitome of easiness
- Onetime network of 20-Across