Tampa Bay released Walcott on Saturday from his professional tryout agreement and returned him to AHL Syracuse.
Walcott was waived by the Lightning on Friday, per CapFriendly.
Walcott was demoted from the taxi squad to AHL Syracuse on Sunday, Erik Erlendsson of LightningInsider.com reports.
Walcott was promoted from AHL Syracuse to the taxi squad Thursday, Bryan Burns of the Lightning's official site reports.
Walcott was waived Saturday, reports Ren Lavoie of TVA Sports.
Walcott has been promoted to the active roster for Monday's game against the Panthers, Erik Erlendsson of Lightning Insider reports.
Walcott was promoted to the taxi squad Tuesday, per CapFriendly.
Walcott signed a two-year, two-way contract with the Lightning on Tuesday.
Walcott was reassigned to the Syracuse Crunch of the AHL.
Walcott signed a one-year, two-way contract to remain with the LIghtning on Friday.