Here is the up to date list of space on Freeview being unused.
Unuse 24 hours slots:
-No slots are free right now.
Part time slots:
-Old
ITVBe +1/ITV3 +1 slot on ITV's SDN mux (From Midnight to 6am - NOT in Wales)
Slots information right at time of posting.
Latest rumours says:
That's TV 2 set to become Chart Show Retro from April 10th.
Source:
https://www.terrestrialtv.uk/dtt.php
What changes set to happen soon on Freeview (CONFIRMED)
April:
2nd. Greatest Hits Radio closes
2nd. Hits Radio closes
2nd. Kerrang! Radio closes
2nd. KISS Fresh closes
2nd. KISS Radio closes
2nd. KISSTORY closes
2nd. Magic Radio closes
May:
10th. Absolute Radio closes
Summer:
Talk TV closes
Freeview make changes to EPG every Month - Next is set to be on:
April 17th.