tv-cronjob.txt

# start up crontab

$ crontab -e
no crontab for pi - using an empty one

Select an editor.  To change later, run 'select-editor'. 
1.  /bin/ed
2. /bin/nano        <---- easiest
3. /usr/bin/vim.tiny

# I use Nano, but use whatever edior you want and add this for example:

# Turn on TV and set Raspberry Pi as input every third hour during business hours
30 7,10,13 * * 1-5 /home/pi/TV.sh >> /home/pi/TV.log