Xbox Head Phil Spencer was asked by a fan on Twitter if backwards compatible Xbox games would support widescreen TVs. Spencer replied..
“Most OGXbox games didn’t have [widescreen]. Can’t really easily change the frame buffer aspect ratio on a shipped game from [backwards compatibility].
Spencer also said they shouldn’t expect any achievements on original Xbox titles by stating..
“Only real option is to patch each game, won’t happen. Could give achvmnt 4 “playing”, don’t really like that.”