Emptiness is uncomfortable to most people. From desert to sea, the nothingness around us is very real.
Most TV channels are lazy and fill their 'downtime' with shopping and gaming channels. However, unbelievably, some channel regard their downtime as being 12 midnight - 7pm, or more than 3/4 of the day.
Of course, broadcasters are free to their own devices, but this suggest a profligacy beyond comprehension.
The future of content is to achieve the highest yield possible, across all media and time.
I'd like to make a straightforward prediction. Anyone not addressing 24 x 7 content will be history two years from now.