#TECO, 20 bytes

<Tab>V27:^TJDV<Esc>V27:^TJDV

The <Esc> should be replaced with ASCII 0x1B, and the <Tab> with 0x09.

• <Tab>V27:^TJDV<Esc> inserts the text <Tab>V27:^TJDV. This is not because there is a text insertion mode which TECO starts in by default. Instead, <Tab> text <Esc> is a special insertion command which inserts a tab, and then the text. A string whose own initial delimiter is part of the text -- very handy.
• V prints the current line.
• 27:^T prints the character with ASCII code 27 without the usual conversion to a printable representation.
• J jumps to the beginning of the text.
• D deletes the first character (the tab).
• V prints the line again.

TECO, 20 bytes

<Tab>V27:^TJDV<Esc>V27:^TJDV

The <Esc> should be replaced with ASCII 0x1B, and the <Tab> with 0x09.

• <Tab>V27:^TJDV<Esc> inserts the text <Tab>V27:^TJDV. This is not because there is a text insertion mode which TECO starts in by default. Instead, <Tab> text <Esc> is a special insertion command which inserts a tab, and then the text. A string whose own initial delimiter is part of the text -- very handy.
• V prints the current line.
• 27:^T prints the character with ASCII code 27 without the usual conversion to a printable representation.
• J jumps to the beginning of the text.
• D deletes the first character (the tab).
• V prints the line again.

#TECO, 24 bytes

I73^TV27:^TV<Esc>73^TV27:^TV

The <Esc> should be replaced with ASCII 0x1B.

#TECO, 20 bytes

<Tab>V27:^TJDV<Esc>V27:^TJDV

The <Esc> should be replaced with ASCII 0x1B, and the <Tab> with 0x09.

• <Tab>V27:^TJDV<Esc> inserts the text <Tab>V27:^TJDV. This is not because there is a text insertion mode which TECO starts in by default. Instead, <Tab> text <Esc> is a special insertion command which inserts a tab, and then the text. A string whose own initial delimiter is part of the text -- very handy.
• V prints the current line.
• 27:^T prints the character with ASCII code 27 without the usual conversion to a printable representation.
• J jumps to the beginning of the text.
• D deletes the first character (the tab).
• V prints the line again.

#TECO, 26 bytes

I73:^TV27:^TV<Esc>73:^TV27:^TV

The <Esc> should be replaced with ASCII 0x1B.

#TECO, 24 bytes

I73^TV27:^TV<Esc>73^TV27:^TV

The <Esc> should be replaced with ASCII 0x1B.