A:AnswerOur recommendation is to go for the BenQ DGD5 3D glasses. To make them compatible with your TK850i, you have the option to purchase any 3D glasses with DLP Link.
A:AnswerGreat question! There shouldn't be too much of a difference as 3LCD vs. DLP difference is mainly on the light processing, so the screen won't be impacted after you switch from 3LCD to DLP.
A:AnswerThanks for your interest on TK850i; our smart Home projectors are equipped with Google Android TV, so you may want to add some Alexa adapter or FireTV stick for the Alexa eco system. However, on BenQ smart Android TV home projectors, they do come with Google Voice Control feature and users can use BenQ smart remote controls to make voice commands via Google Search cloud service. Hope this helps.