Getting audio to go over hdmi for mythtv

After using the alsa upgrade script I rebooted and started to work on getting audio going .

Before the upgrade I got the following.

root@m2box:/offline/files/alsa# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: VT1708B Analog [VT1708B Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
root@m2box:/offline/files/alsa# aplay -L
default:CARD=NVidia
HDA NVidia, VT1708B Analog
Default Audio Device
front:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
Front speakers
surround40:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
null
Discard all samples (playback) or generate zero samples (capture)
After the upgrade and reboot I got the following:

root@m2box:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: VT1708B Analog [VT1708B Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
root@m2box:~# aplay -L
default:CARD=NVidia
HDA NVidia, VT1708B Analog
Default Audio Device
front:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
Front speakers
surround40:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia,DEV=0
HDA NVidia, VT1708B Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
null
Discard all samples (playback) or generate zero samples (capture)