markofla the explantions for that are in posts 28393 and
28447.

Basically the explanation is MANY films have been
scanned and processed in 4K these past months.
The main delay in uploading them has been in
the ENCODING process as well as confirming to
each tv maker chip set specs.

With Blake Brown's technical expertise most all
of these kinks have been worked out and they
will be transitioning the encoding to the
GOOGLE ICLOUD where they will be able to
do MASSIVE UPLOADS of CONTENT.

Again read the above posts for more details.