The Big Bang Theory
Season 9 Episode 23 - The Line Substitution Solution
7.9 ?
2007
Comedy
Sheldon hires Stuart to spend the day with Amy when he’d rather go to a movie screening. Also, Leonard’s mother, Beverly, comes to town and Penny struggles to make a connection with her.
Episodes in Season 9
1
The Matrimonial Momentum
19 min
2
The Separation Oscillation
19 min
3
The Bachelor Party Corrosion
19 min
4
The 2003 Approximation
19 min
5
The Perspiration Implementation
19 min
6
The Helium Insufficiency
19 min
7
The Spock Resonance
19 min
8
The Mystery Date Observation
18 min
9
The Platonic Permutation
21 min
10
The Earworm Reverberation
21 min
11
The Opening Night Excitation
21 min
12
The Sales Call Sublimation
18 min
13
The Empathy Optimization
19 min
14
The Meemaw Materialization
19 min
15
The Valentino Submergence
20 min
16
The Positive Negative Reaction
19 min
17
The Celebration Experimentation
19 min
18
The Application Deterioration
18 min
19
The Solder Excursion Diversion
21 min
20
The Big Bear Precipitation
19 min
21
The Viewing Party Combustion
18 min
22
The Fermentation Bifurcation
20 min
23
The Line Substitution Solution
18 min
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24
The Convergence Convergence
20 min
