This month, one of TCM’s theme is remakes, and tonight’s prime-time lineup is devoted to “Silents to Sound.” The first example of the month: a silent 1925 version of Ben-Hur, followed by the much more familiar 1959 full-color, full-sound, widescreen epic starring Charlton Heston. The first entry, Ben-Hur: A Tale of the Christ, is shown at 8 p.m. ET, followed at 10:45 p.m. ET by the shorter title, but much longer movie, Ben-Hur (pictured).