Doaa Salah, a presenter on Al-Nahar TV, asked if her viewers had considered having sex before marriage, and also suggested a woman could marry briefly to have children before divorcing.
She was charged and convicted with outraging public decency.
Ms Salah was also ordered to pay 10,000 Egyptian pounds (£430) in compensation.
The authorities said the ideas in the programme "threatened the fabric of Egyptian life", the EFE news agency reports.
Sex before marriage is widely regarded as unacceptable in socially conservative Egypt.
