ing ▁her ▁answer . ▁In ▁the ▁season ▁ 1 1 ▁premi ere ▁episode ▁" The ▁Pro pos al ▁Pro pos al ", ▁which ▁pick s ▁up ▁immediately ▁after ▁Sh eld on ' s ▁proposal , ▁Amy ' s ▁answer ▁is ▁further ▁delayed ▁by ▁a ▁phone ▁call ▁from ▁Leonard ▁and ▁Pen ny , ▁after ▁which ▁she ▁finally ▁says ▁yes . ▁She ▁and ▁Sh eld on ▁marry ▁in ▁the ▁season ▁ 1 1 ▁finale . ▁Amy ▁objects ▁to ▁Sh eld on ▁wanting ▁to ▁provide ▁s perm ▁for ▁Z ack ▁Johnson ' s ▁baby , ▁but ▁does ▁try ▁and ▁get ▁him ▁excited ▁about ▁having ▁their ▁own ▁child . ▁ ▁In ▁the ▁final ▁season , ▁Sh eld on ▁and ▁Amy ▁publish ▁their ▁work ▁on ▁super - as ym metric ▁string ▁theory ▁and ▁win ▁the ▁Nobel ▁Prize ▁in ▁Physics ▁together . ▁ ▁Re ception ▁The ▁fourth ▁season ▁received ▁particular ▁pra ise ▁for ▁character ▁develop ments . ▁Alan ▁Se pin wall ▁of ▁U pro xx ▁pra ised ▁the ▁add itions ▁of ▁Bern ad ette ▁and ▁Amy ▁to ▁the ▁cast , ▁writing ▁that ▁" With ▁Amy ▁Far rah ▁F ow ler ▁and ▁Bern ad ette ▁promoted ▁to ▁semi - per man ent ▁status , ▁the ▁show ▁is ▁now ▁able ▁to ▁spend ▁large ▁ch unks ▁of ▁each ▁episode ▁foc using ▁only ▁on ▁the ▁women , ▁and ▁in ▁the ▁process ▁has ▁made ▁Pen ny ▁a ▁much ▁more ▁well - r ounded ▁character ▁rather ▁than ▁just ▁a ▁fo il ▁for ▁the ▁n erd s ". ▁ ▁References ▁ ▁Category : T ele vision