No reason the 218 won't have this in the future if the 251 does. Perhaps not yet available.

Meanwhile, how does one find out and install new 218 firmware if it ever arrives?

John

Main system: Cable, Apple TV, HD621, G68D, AC11, 218, DSP7200SE (L+R), DSP3200 (L+R Rear)
2nd system: Cable, Apple TV, MC200, HD621, 568.2, M3100 (L+R)