Don’t I just need a higher-speed Wi-Fi product to make IPTV / video work?
Not necessarily. Adding bandwidth to the Wi-Fi network will not automatically enable wireless video distribution. Video requires a consistent, low-delay availability of network bandwidth. Newer WLAN technologies such as spatial multiplexing mode in MIMO increases the wireless data rate but will not guarantee bandwidth consistency. As radio signals ebb and flow (due to motion or interference from Bluetooth phones, for example) and other applications compete for the WLAN’s bandwidth, transmission errors and delays will still occur.