The SE's were released in the US on laserdisc as well (in a boxed set only). I got set new from Columbia House several years ago. The discs are CLV/CAV hybrids and it includes a LD-sized gate-fold insert. There are some bonus features starting with chapter 41:

41. Theatrical Trailer (side 3- end of ANH)

50. Theatrical Trailer (side 6- end of ESB)

53. Theatrical Trailer (side 9- end of ROTJ)
54. Featurette
55. Fleshing out the Characters
56. The Limits of 1977 Technology
57. Visual Enhancements
58. The Sound
59. The Empire Strikes Back
60. Return of the Jedi
61. A New Musical Finale
62. As It Was Meant to Be