A Grade sky plus is a reconditioned/repaired box........ .....Sky plus is a brand new box.
Sky only make sky hd plus now.
Sky - Sky album - was created in 1979-05.
Sky Blue Sky was created in 2006-11.
To the Sky was created in 2009.
Get Out of My Sky was created in 1957.
In a short answer; yes! A sky plus HD box is sky plus, but has the ability to view HD content from Sky. Typically the Sky+ HD boxes have a bigger hard drive as HD content uses lots of disk space.
Crack the Sky - Crack the Sky album - was created in 1975.
Fly to the Sky was created in 1999.
Sky Broadband was created in 2006.