What to Watch: February 5

'Soul Train: The Hippest Trip in America' (9PM, VH1)
This installment of VH1's 'Rock Doc' series celebrates the 40th anniversary of 'Soul Train,' the 1970-2006 music series that became the longest-running syndicated show in TV history. 'Soul Train' creator and original host Don Cornelius chats about the show's influence, as it was one of the only shows to consistently spotlight black musicians, and dance and fashion trends. Gladys Knight, Al Green, Tina Turner, B.B. King, Stevie Wonder, The Jackson 5, James Brown, Michael Jackson, Chuck Berry, Aretha Franklin, Earth, Wind & Fire, Rick James, Luther Vandross, Janet Jackson, The Commodores, Whitney Houston, New Edition, Bobby Brown, Brian McKnight, Maxwell and Aaron Neville were among the hundreds of stars who showcased their hits with 'Soul Train' performances, while elements of the show -- like the 'Soul Train' scramble board and Cornelius' signature sign-off, "We wish you love, peace and soul" -- became part of popular culture.'Soul Train: The Hippest Trip in America' (9PM, VH1)
This installment of VH1's 'Rock Doc' series celebrates the 40th anniversary of 'Soul Train,' the 1970-2006 music series that became the longest-running syndicated show in TV history. 'Soul Train' creator and original host Don Cornelius chats about the show's influence, as it was one of the only shows to consistently spotlight black musicians, and dance and fashion trends. Gladys Knight, Al Green, Tina Turner, B.B. King, Stevie Wonder, The Jackson 5, James Brown, Michael Jackson, Chuck Berry, Aretha Franklin, Earth, Wind & Fire, Rick James, Luther Vandross, Janet Jackson, The Commodores, Whitney Houston, New Edition, Bobby Brown, Brian McKnight, Maxwell and Aaron Neville were among the hundreds of stars who showcased their hits with 'Soul Train' performances, while elements of the show -- like the 'Soul Train' scramble board and Cornelius' signature sign-off, "We wish you love, peace and soul" -- became part of popular culture.

'Ghost Whisperer' – Margaret Cho guest stars as a professor who's stalked by a ghost who's warm for her form (8PM, CBS)

'Smallville' – Series star Tom Welling directed the last half of this two-hour episode that finds Clark, Chloe, Green Lantern and John Jones hooking up with the Justice Society of America (8PM, The CW)

'Degrassi: The Next Generation' – Declan's interested in Holly J ... until she shows interest in him. Wow, we really miss Spinner and Liberty and Paige and Manny and Marco and Jay ... (9PM, TeenNick)

'What Not to Wear' – Here's a rarity for the makeover show: It's a dude who's told his duds are duds (9PM, TLC)

'Numb3rs' – It's like we've fallen asleep and woke up in 1982, as 'Taxi star Marilu Henner and 'Greatest American Hero' star William Katt guest in this episode that revolves around a jewelry theft (10PM, CBS)