what is the total episode on the chart?
13
col : episode # | original air date (uk) | episode title | guest cast | dvd # 1 row 1 : 1-01 | 22 october 1976 | "the eagle's nest" | peter cushing, derek farr, frank gatliff, trevor | 1.01 row 2 : 1-02 | 29 october 1976 | "house of cards" | peter jeffrey, mark burns, annette andre, jeremy wil | 1.03 row 3 : 1-03 | 5 november 1976 | "the last of the cybernauts?" | robert lang, oscar quitak, basil hoskins, robert g | 1.04 row 4 : 1-04 | 12 november 1976 | "the midas touch" | john carson, ronald lacey, ed devereaux, pik | 1.02 row 5 : 1-05 | 19 november 1976 | "cat amongst the pigeons" | vladek sheybal, basil dignam, paul copley, | 1.06 row 6 : 1-06 | 26 november 1976 | "target" | keith barron, frederick jaeger, robert beatty, bruce purchase | 1.07 row 7 : 1-07 | 3 december 1976 | "to catch a rat" | ian hendry, barry jackson, edward judd, dallas cave | 1.05 row 8 : 1-08 | 10 december 1976 | "the tale of the big why" | derek waring, jenny runacre, roy marsden, george a. | 1.09 row 9 : 1-09 | 17 december 1976 | "faces" | david de keyser, edward petherbridge, richard leech, | 1.08 row 10 : 1–10 | 21 december 1976 | "gnaws" | julian holloway, peter cellier, jeremy young, patrick mal | 1.11 row 11 : 1–11 | 7 january 1977 | "dirtier by the dozen" | john castle, shaun curry, alun armstrong, michael barrington, | 1.13 row 12 : 1–12 | 14 january 1977 | "sleeper" | keith buckley, sara kestelman, prentis hancock | 1.12 row 13 : 1–13 | 21 january 1977 | "three-handed game" | stephen greif, tony vogel, david wood, ronald leigh-h | 1.10
what is the total episode on the chart?
Episode # Original air date (UK) Episode title Guest cast DVD # 1
1-01 22 October 1976 "The Eagle's Nest" Peter Cushing, Derek Farr, Frank Gatliff, Trevor Baxter, Jerold Wells, Sydney Bromley, Peter Porteous 1.01
1-02 29 October 1976 "House of Cards" Peter Jeffrey, Mark Burns, Annette Andre, Jeremy Wilkin, Frank Thornton, Lyndon Brook, Derek Francis, Gordon Sterne, Anthony Bailey 1.03
1-03 5 November 1976 "The Last of the Cybernauts?" Robert Lang, Oscar Quitak, Basil Hoskins, Robert Gillespie, Gwen Taylor, Ray Armstrong, Martin Fisk 1.04
1-04 12 November 1976 "The Midas Touch" John Carson, Ronald Lacey, Ed Devereaux, Pik-Sen Lim, Geoffrey Bateman, Tim Condren, Chris Tranchell, David Swift 1.02
1-05 19 November 1976 "Cat Amongst the Pigeons" Vladek Sheybal, Basil Dignam, Paul Copley, Kevin Stoney, Hugh Walters, Brian Jackson, Gordon Rollings 1.06
1-06 26 November 1976 "Target" Keith Barron, Frederick Jaeger, Robert Beatty, Bruce Purchase, Roy Boyd, Deep Roy, John Paul, Malcolm Stoddard 1.07
1-07 3 December 1976 "To Catch a Rat" Ian Hendry, Barry Jackson, Edward Judd, Dallas Cavell, Jo Kendall 1.05
1-08 10 December 1976 "The Tale of the Big Why" Derek Waring, Jenny Runacre, Roy Marsden, George A. Cooper, Geoffrey Toone, Gary Waldhorn 1.09
1-09 17 December 1976 "Faces" David de Keyser, Edward Petherbridge, Richard Leech, Michael Sheard, Donald Hewlett, Neil Hallett, David Webb, J. G. Devlin 1.08
1–10 21 December 1976 "Gnaws" Julian Holloway, Peter Cellier, Jeremy Young, Patrick Malahide, W. Morgan Sheppard, Keith Marsh 1.11
1–11 7 January 1977 "Dirtier by the Dozen" John Castle, Shaun Curry, Alun Armstrong, Michael Barrington, Brian Croucher, Stephen Moore, John Forbes-Robertson, David Purcell 1.13
1–12 14 January 1977 "Sleeper" Keith Buckley, Sara Kestelman, Prentis Hancock, Mark Jones 1.12
1–13 21 January 1977 "Three-Handed Game" Stephen Greif, Tony Vogel, David Wood, Ronald Leigh-Hunt, Annie Lambert, Hugh Morton, John Paul 1.10
13