Undefined offset: 1 in emvideo_bliptv_extract of media_bliptv/providers/emvideo/bliptv.inc

On posting a new node I'm getting the following messages:-

	Notice: Undefined offset: 1 in emvideo_bliptv_extract() (line 58 of /srv/bindings/ab331aab8e404f6d89add5010badaee5/code/sites/all/modules/media_bliptv/providers/emvideo/bliptv.inc).
	Notice: Undefined offset: 1 in emvideo_bliptv_extract() (line 58 of /srv/bindings/ab331aab8e404f6d89add5010badaee5/code/sites/all/modules/media_bliptv/providers/emvideo/bliptv.inc).
	Notice: Undefined offset: 1 in emvideo_bliptv_extract() (line 58 of /srv/bindings/ab331aab8e404f6d89add5010badaee5/code/sites/all/modules/media_bliptv/providers/emvideo/bliptv.inc).
	Notice: Undefined offset: 1 in emvideo_bliptv_extract() (line 58 of /srv/bindings/ab331aab8e404f6d89add5010badaee5/code/sites/all/modules/media_bliptv/providers/emvideo/bliptv.inc).

The message goes away if I make this change:-

-  if ($matches[1]) {
+  if (array_key_exists(1, $matches) && $matches[1]) {

The reasoning is it is a simple guard against there not being anything in $matches ..