Unlike traditional programming in 30-minute or one-hour blocks, music video shows have to capture their audience anew every few minutes.

In an attempt to encourage regular viewing habits - known in television jargon as "appointment viewing" - one-hour blocks are divided into 10-minute segments.

On weekends, the evening programming consists almost entirely of national programming, with one-hour blocks dedicated to programming of nationality-based music and discussion.

It was previously known as Fox Kids, which was a one-hour block in Star Plus.

In some regions two episodes were aired consecutively in one-hour blocks.

Each round began airing in a one-hour block on November 15 with the Long Beach round.

Starting March 7, 2009, Bionix became a one-hour block, airing from 10-11pm on Saturdays.

Not another dull, forgettable one-hour block of instruction on ethics like I endured in my years of officer training.

Currently airing on the Comedy Gold (formerly TV Land Canada) in one-hour blocks every day at 11 am and 5 pm EST.

Weather Center will only air three one-hour blocks each night(7-8pm, 10-11pm, and 1-2am).