Brannon Braga, who had always wanted to do a time travel story, called this episode the smoothest he had yet worked on.
	Kelsey Grammer was the third "Cheers" star to appear in Star Trek after Bebe Newirth in "First Contact" and Kirsty Alley in Star Trek II.
	The staff had originally wanted the first officer stood next to Kelsey Grammar to be Kirstie Alley as Lt. Saavik, but the scheduling couldn't be worked out.
	The Bozeman miniature was a redress of the Reliant from Star Trek II minus the roll bar and with new sensor turrets, docking port and bridge.
	Originally, the Bozeman was to be a 1960's era pre-movie Constitution class starship but budget demands put an end to that when the cost of crediting and filming ship, props and costumes were added up.
	The main shuttle bay is actually a tabletop model built by Mike Okuda on which the two shuttlecraft were named, in lettering too small to be seen, the Berman and the Piller!

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