Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Merlin (series 2)
Table title:
Episodes
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > No. overall </th><th colspan=1 rowspan=1 > No. in series </th><th colspan=1 rowspan=1 > Title </th><th colspan=1 rowspan=1 > Directed by </th><th colspan=1 rowspan=1 > Written by </th><th colspan=1 rowspan=1 > Original air date </th><th colspan=1 rowspan=1 > UK viewers (millions) </th></tr>
<tr> <th colspan=1 rowspan=1 > 14 </th><td class="highlighted"  colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > "The Curse of Cornelius Sigan" </td><td colspan=1 rowspan=1 > David Moore </td><td colspan=1 rowspan=1 > Julian Jones </td><td colspan=1 rowspan=1 > 19 September 2009 </td><td class="highlighted"  colspan=1 rowspan=1 > 5.77 </td></tr>
<tr> <td colspan=7 rowspan=1 > Digging beneath the castle uncovers a tomb full of wealth and the waiting soul of a dead sorcerer. A would-be thief ingratiates himself with Arthur and usurps Merlin's position to get access to the key that will allow him to rob the tomb, but he gets more than he bargained for and is possessed by the dead sorcerer. </td></tr>
<tr> <th colspan=1 rowspan=1 > 15 </th><td class="highlighted"  colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > "The Once and Future Queen" </td><td colspan=1 rowspan=1 > Jeremy Webb </td><td colspan=1 rowspan=1 > Howard Overman </td><td colspan=1 rowspan=1 > 26 September 2009 </td><td colspan=1 rowspan=1 > 5.94 </td></tr>
<tr> <td colspan=7 rowspan=1 > Prince Arthur learns his knights are deliberately letting him win at jousting practice because of his royal status and so believes that he will only be able to prove himself in a jousting tournament if his opponents do not know his real identity. </td></tr>
<tr> <th colspan=1 rowspan=1 > 16 </th><td class="highlighted"  colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > "The Nightmare Begins" </td><td colspan=1 rowspan=1 > Jeremy Webb </td><td colspan=1 rowspan=1 > Ben Vanstone </td><td colspan=1 rowspan=1 > 3 October 2009 </td><td colspan=1 rowspan=1 > 6.09 </td></tr>
<tr> <td colspan=7 rowspan=1 > Morgana begins to suspect she has magic and Merlin wants to help despite Gaius' warning not to get involved. Merlin helps Morgana to reach out to the Druids, but King Uther declares she has been abducted and sends Arthur with a party of knights to kill the Druids and rescue Morgana. </td></tr>
<tr> <th colspan=1 rowspan=1 > 17 </th><td class="highlighted"  colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > "Lancelot and Guinevere" </td><td colspan=1 rowspan=1 > David Moore </td><td colspan=1 rowspan=1 > Howard Overman </td><td colspan=1 rowspan=1 > 10 October 2009 </td><td colspan=1 rowspan=1 > 5.69 </td></tr>
<tr> <td colspan=7 rowspan=1 > A gang of criminals abduct Morgana and Guinevere intending to force King Uther to ransom his ward. When Morgana escapes, her abductor attempts to pass off Gwen as the king's ward. </td></tr>
<tr> <th colspan=1 rowspan=1 > 18 </th><td class="highlighted"  colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > "Beauty and the Beast - Part 1" </td><td colspan=1 rowspan=1 > David Moore </td><td colspan=1 rowspan=1 > Jake Michie </td><td colspan=1 rowspan=1 > 24 October 2009 </td><td colspan=1 rowspan=1 > 5.53 </td></tr>
<tr> <td colspan=7 rowspan=1 > The lone survivor of an attack on a nobleman's household and her odd servant obtain refuge with an old friend, King Uther, but she is not what she appears and Merlin must somehow stop the King from marrying a troll. </td></tr>
<tr> <th colspan=1 rowspan=1 > 19 </th><td class="highlighted"  colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > "Beauty and the Beast - Part 2" </td><td colspan=1 rowspan=1 > Metin Huseyin </td><td colspan=1 rowspan=1 > Ben Vanstone </td><td colspan=1 rowspan=1 > 31 October 2009 </td><td colspan=1 rowspan=1 > 6.14 </td></tr>
<tr> <td colspan=7 rowspan=1 > Even when Merlin successfully unmasks the troll for what she really is, her enchantment continues to hold her new husband, King Uther, in love. </td></tr>
<tr> <th colspan=1 rowspan=1 > 20 </th><td class="highlighted"  colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > "The Witchfinder" </td><td colspan=1 rowspan=1 > Jeremy Webb </td><td colspan=1 rowspan=1 > Jake Michie </td><td colspan=1 rowspan=1 > 7 November 2009 </td><td colspan=1 rowspan=1 > 5.62 </td></tr>
<tr> <td colspan=7 rowspan=1 > A harmless bit of magic by Merlin brings the wrath of Uther's witchfinder down on Camelot. The witchfinder accuses Merlin of being a sorcerer but it is Gaius who takes the fall. </td></tr>
<tr> <th colspan=1 rowspan=1 > 21 </th><td class="highlighted"  colspan=1 rowspan=1 > 8 </td><td colspan=1 rowspan=1 > "The Sins of the Father" </td><td colspan=1 rowspan=1 > Metin Huseyin </td><td colspan=1 rowspan=1 > Howard Overman </td><td colspan=1 rowspan=1 > 14 November 2009 </td><td colspan=1 rowspan=1 > 6.16 </td></tr>
<tr> <td colspan=7 rowspan=1 > Arthur faces a challenge from a mysterious knight who turns out to be a woman. He is forced to face Morgause in a battle to the death. </td></tr>
<tr> <th colspan=1 rowspan=1 > 22 </th><td class="highlighted"  colspan=1 rowspan=1 > 9 </td><td colspan=1 rowspan=1 > "The Lady of the Lake" </td><td colspan=1 rowspan=1 > Metin Huseyin </td><td colspan=1 rowspan=1 > Julian Jones </td><td colspan=1 rowspan=1 > 21 November 2009 </td><td colspan=1 rowspan=1 > 6.30 </td></tr>
<tr> <td colspan=7 rowspan=1 > Merlin rescues a young Druid girl and begins to fall in love with her, but her former captor says she is cursed, which turns out to be unfortunately true. </td></tr>
<tr> <th colspan=1 rowspan=1 > 23 </th><td class="highlighted"  colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > "Sweet Dreams" </td><td colspan=1 rowspan=1 > Alice Troughton </td><td colspan=1 rowspan=1 > Lucy Watkins </td><td colspan=1 rowspan=1 > 28 November 2009 </td><td colspan=1 rowspan=1 > 6.02 </td></tr>
<tr> <td colspan=7 rowspan=1 > Five kings gather in Camelot to sign a peace treaty, but one of them intends to sabotage the peace. King Alined's jester uses magic to enchant Prince Arthur to fall in love with the beautiful Lady Vivian to incite a war between her possessive father, King Olaf, and Camelot. </td></tr>
<tr> <th colspan=1 rowspan=1 > 24 </th><td class="highlighted"  colspan=1 rowspan=1 > 11 </td><td colspan=1 rowspan=1 > "The Witch's Quickening" </td><td colspan=1 rowspan=1 > Alice Troughton </td><td colspan=1 rowspan=1 > Jake Michie </td><td colspan=1 rowspan=1 > 5 December 2009 </td><td colspan=1 rowspan=1 > 6.01 </td></tr>
<tr> <td colspan=7 rowspan=1 > An unscrupulous rebel, Alvar, uses Mordred to contact Morgana and convince her to steal a valuable crystal which he believes will aid in his quest to overthrow Uther. </td></tr>
<tr> <th colspan=1 rowspan=1 > 25 </th><td class="highlighted"  colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > "The Fires of Idirsholas" </td><td colspan=1 rowspan=1 > Jeremy Webb </td><td colspan=1 rowspan=1 > Julian Jones </td><td colspan=1 rowspan=1 > 12 December 2009 </td><td colspan=1 rowspan=1 > 6.01 </td></tr>
<tr> <td colspan=7 rowspan=1 > Morgause uses her magic to re-awaken seven undead knights to attack Camelot. She seduces Morgana into being the source of a spell which puts everyone in Camelot to sleep and leaves the city vulnerable. </td></tr>
<tr> <th colspan=1 rowspan=1 > 26 </th><td class="highlighted"  colspan=1 rowspan=1 > 13 </td><td colspan=1 rowspan=1 > "The Last Dragonlord" </td><td colspan=1 rowspan=1 > Jeremy Webb </td><td colspan=1 rowspan=1 > Julian Jones </td><td colspan=1 rowspan=1 > 19 December 2009 </td><td class="highlighted"  colspan=1 rowspan=1 > 6.64 </td></tr>
<tr> <td colspan=7 rowspan=1 > Merlin's promise unleashes the Great Dragon's revenge on Camelot. When Merlin's magic proves ineffective, the only hope is to contact the last living Dragonlord. </td></tr>
</table>
Question:
How many episodes did Merlin (series 2) contain, and what was the viewership for the premiere and series finale?
Answer:
Merlin (series 2) contains thirteen episodes and had 5.77 million viewers for the premiere with 6.64 million viewers for the series finale.