It seems that Google is on the cusp of mandating native support for the AV1 codec for Android TV devices. However, if the rumored deadline of March is indeed correct, that would be a severe shake-up in this market, as only a few silicon designs are currently available. Given that Google’s own hardware doesn’t have AV1 support yet, this is a bit bemusing. The latest round of reporting was triggered by XDA Developers, after the outlet saw an internal slide from a Google presentation that seemed to corroborate the much older rumor mill reports. So, it does seem that March is going to be a cut-off, of sorts, for any media player device that runs Android 10 or 11. This would…