"""It's my only line"" was said by Katya Wyeth (Wife) to Michael Palin (Critic) in an art gallery sketch and by Terry Gilliam (Man) during a link with Graham Chapman (Colonel) in Episode Four

WifeTAB(bringing in a water jug and glass on a tray and laying it on his desk)
TABWatteau, dear?
CriticTABWhat a terrible joke.
WifeTABBut it's my only line.

ManTABThis is my only line. (catcalls) (defensively) Well, it's my only line.

""It's my only line"" was said by Katya Wyeth (Girl) to Michael Palin (Art Critic) in an art critic sketch and Carol (Bride) in the mattress sketch in Episode Eight.

GirlTAB(cutely) I'm not your Grace, I'm your Elsie.
CriticTABWhat a terrible joke!
GirlTAB(crying) But it's my only line!

BrideTABWe want a mattress.
TAB(Lambert immediately puts bag back on head.)
AllTABOh. What did you say that for? What did you say that for?
BrideTAB(weeping) But it's my only line!

As far as I can tell Carol only said it once, so maybe it's not notable.  But it was funny!
 

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