Prime Time

I wonder how the aging of the population will start to impact everyday items like the time frame for prime time? I was thinking about this so prime time is set up to be on when most people are likely to be watching TV. If the majority of people are retired and likely to go to bed by 8:00 I wonder if the primetime slot gets moved up? Monday night football starting @ 4:30? Right after the early bird special? I guess with the market wreaking havoc on people’s retirement funds I at least get a few more years before I have to worry about this.