Solved No Sound with HDMI connection

Following icybergie's suggestion

I went in to Rollback my drivers on my machine and found that option was grayed out. But since I was already in Device Manager and my Audio wasn't working anyway I chose to fully remove the driver from there. A reboot of the system and I now have audio playing through my TV. Thanks for the suggestion icybergie, glad that this whole thread still regularly shows up with a Google search for no HDMI sound too, otherwise I might still be watching a nice TV picture while listening to my crappy headphones :p
 

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At a glance

Windows 7 Professional x64AMD Phenom(tm) 8650 Triple-Core Processor (ar...4GB (2x2GB chips at 800ns speed)AMD Radeon HD 5800 Series
Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom build
OS
Windows 7 Professional x64
CPU
AMD Phenom(tm) 8650 Triple-Core Processor (architecture: x64
Motherboard
Gigabyte Technology Co., Ltd. (M61PME-S2P; version: x.x)
Memory
4GB (2x2GB chips at 800ns speed)
Graphics Card(s)
AMD Radeon HD 5800 Series
Hard Drives
SAMSUNG HD753LJ SCSI Disk Device (698.6 GB) - physical
Split into C: (Local Fixed Disk; size: 128.0 GB; free space: 36.9 GB; file system: NTFS)
and D: (Local Fixed Disk; size: 570.6 GB; free space: 413.8 GB; file system: NTFS)
Antivirus
AVG 2015, Version: 2015.0.6201, Publisher: AVG Technologies
Browser
IE 11.0, Chrome 50, Firefox 46
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